345457837 has 8 divisors (see below), whose sum is σ = 352119096. Its totient is φ = 338860032.

The previous prime is 345457811. The next prime is 345457843. The reversal of 345457837 is 738754543.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10055241 + 335402596 = 3171^2 + 18314^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345457837 - 2⁷ = 345457709 is a prime.

It is a super-2 number, since 2×345457837² = 238682234289437138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345457877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798 + ... + 26719.

It is an arithmetic number, because the mean of its divisors is an integer number (44014887).

Almost surely, 2^345457837 is an apocalyptic number.

It is an amenable number.

345457837 is a deficient number, since it is larger than the sum of its proper divisors (6661259).

345457837 is a wasteful number, since it uses less digits than its factorization.

345457837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31727.

The product of its digits is 1411200, while the sum is 46.

The square root of 345457837 is about 18586.4960925937. The cubic root of 345457837 is about 701.6680201006.

The spelling of 345457837 in words is "three hundred forty-five million, four hundred fifty-seven thousand, eight hundred thirty-seven".