69797645 has 4 divisors (see below), whose sum is σ = 83757180. Its totient is φ = 55838112.

The previous prime is 69797593. The next prime is 69797657. The reversal of 69797645 is 54679796.

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 14235529 + 55562116 = 3773^2 + 7454^2 .

It is a cyclic number.

It is not a de Polignac number, because 69797645 - 2²⁰ = 68749069 is a prime.

It is a super-3 number, since 3×69797645³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6979760 + ... + 6979769.

It is an arithmetic number, because the mean of its divisors is an integer number (20939295).

Almost surely, 2^69797645 is an apocalyptic number.

It is an amenable number.

69797645 is a deficient number, since it is larger than the sum of its proper divisors (13959535).

69797645 is a wasteful number, since it uses less digits than its factorization.

69797645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13959534.

The product of its digits is 2857680, while the sum is 53.

The square root of 69797645 is about 8354.4984888382. The cubic root of 69797645 is about 411.7310216083.

The spelling of 69797645 in words is "sixty-nine million, seven hundred ninety-seven thousand, six hundred forty-five".