69925780 has 24 divisors (see below), whose sum is σ = 147131208. Its totient is φ = 27915648.

The previous prime is 69925771. The next prime is 69925781. The reversal of 69925780 is 8752996.

It can be written as a sum of positive squares in 4 ways, for example, as 10419984 + 59505796 = 3228^2 + 7714^2 .

It is a super-2 number, since 2×69925780² = 9779229417216800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) 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 69925780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69925781) 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, 8002 + ... + 14278.

It is an arithmetic number, because the mean of its divisors is an integer number (6130467).

Almost surely, 2^69925780 is an apocalyptic number.

It is an amenable number.

69925780 is an abundant number, since it is smaller than the sum of its proper divisors (77205428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69925780 is a wasteful number, since it uses less digits than its factorization.

69925780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6843 (or 6841 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 69925780 is about 8362.1635956252. The cubic root of 69925780 is about 411.9828204732.

The spelling of 69925780 in words is "sixty-nine million, nine hundred twenty-five thousand, seven hundred eighty".