51700347 has 12 divisors (see below), whose sum is σ = 74947704. Its totient is φ = 34342560.

The previous prime is 51700331. The next prime is 51700351. The reversal of 51700347 is 74300715.

It is not a de Polignac number, because 51700347 - 2⁴ = 51700331 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51700347.

It is not an unprimeable number, because it can be changed into a prime (51700357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7693 + ... + 12750.

It is an arithmetic number, because the mean of its divisors is an integer number (6245642).

Almost surely, 2^51700347 is an apocalyptic number.

51700347 is a deficient number, since it is larger than the sum of its proper divisors (23247357).

51700347 is a wasteful number, since it uses less digits than its factorization.

51700347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20730 (or 20727 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 51700347 is about 7190.2953346855. The cubic root of 51700347 is about 372.5327737180.

The spelling of 51700347 in words is "fifty-one million, seven hundred thousand, three hundred forty-seven".