345703637 has 4 divisors (see below), whose sum is σ = 348875340. Its totient is φ = 342531936.

The previous prime is 345703621. The next prime is 345703649. The reversal of 345703637 is 736307543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191794801 + 153908836 = 13849^2 + 12406^2 .

It is a cyclic number.

It is not a de Polignac number, because 345703637 - 2⁴ = 345703621 is a prime.

It is a super-2 number, since 2×345703637² = 239022009270055538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345703637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345703607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1585688 + ... + 1585905.

It is an arithmetic number, because the mean of its divisors is an integer number (87218835).

Almost surely, 2^345703637 is an apocalyptic number.

It is an amenable number.

345703637 is a deficient number, since it is larger than the sum of its proper divisors (3171703).

345703637 is a wasteful number, since it uses less digits than its factorization.

345703637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171702.

The product of its (nonzero) digits is 158760, while the sum is 38.

The square root of 345703637 is about 18593.1072443527. The cubic root of 345703637 is about 701.8343974813.

The spelling of 345703637 in words is "three hundred forty-five million, seven hundred three thousand, six hundred thirty-seven".