345537647 has 8 divisors (see below), whose sum is σ = 425277216. Its totient is φ = 273392352.

The previous prime is 345537593. The next prime is 345537649. The reversal of 345537647 is 746735543.

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 345537647 - 2⁸ = 345537391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345537598 and 345537607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345537649) 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, 1898468 + ... + 1898649.

It is an arithmetic number, because the mean of its divisors is an integer number (53159652).

Almost surely, 2^345537647 is an apocalyptic number.

345537647 is a deficient number, since it is larger than the sum of its proper divisors (79739569).

345537647 is a wasteful number, since it uses less digits than its factorization.

345537647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797137.

The product of its digits is 1058400, while the sum is 44.

The square root of 345537647 is about 18588.6429574620. The cubic root of 345537647 is about 701.7220506331.

The spelling of 345537647 in words is "three hundred forty-five million, five hundred thirty-seven thousand, six hundred forty-seven".