69620868 has 18 divisors (see below), whose sum is σ = 175986174. Its totient is φ = 23206944.

The previous prime is 69620833. The next prime is 69620869. The reversal of 69620868 is 86802696.

It can be written as a sum of positive squares in only one way, i.e., 67765824 + 1855044 = 8232^2 + 1362^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×69620868² = 9694130522146848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69620869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 966921 + ... + 966992.

Almost surely, 2^69620868 is an apocalyptic number.

It is an amenable number.

69620868 is an abundant number, since it is smaller than the sum of its proper divisors (106365306).

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

69620868 is a wasteful number, since it uses less digits than its factorization.

69620868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933923 (or 1933918 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 69620868 is about 8343.9120321346. The cubic root of 69620868 is about 411.3831296952.

The spelling of 69620868 in words is "sixty-nine million, six hundred twenty thousand, eight hundred sixty-eight".