69764137 has 8 divisors (see below), whose sum is σ = 71272800. Its totient is φ = 68266464.

The previous prime is 69764113. The next prime is 69764147. The reversal of 69764137 is 73146796.

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 69764137 - 2¹¹ = 69762089 is a prime.

It is a super-2 number, since 2×69764137² = 9734069622709538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69764093 and 69764102.

It is not an unprimeable number, because it can be changed into a prime (69764147) 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, 10789 + ... + 15997.

It is an arithmetic number, because the mean of its divisors is an integer number (8909100).

Almost surely, 2^69764137 is an apocalyptic number.

It is an amenable number.

69764137 is a deficient number, since it is larger than the sum of its proper divisors (1508663).

69764137 is a wasteful number, since it uses less digits than its factorization.

69764137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495.

The product of its digits is 190512, while the sum is 43.

The square root of 69764137 is about 8352.4928614157. The cubic root of 69764137 is about 411.6651240105.

The spelling of 69764137 in words is "sixty-nine million, seven hundred sixty-four thousand, one hundred thirty-seven".