69472986 has 32 divisors (see below), whose sum is σ = 152603136. Its totient is φ = 20910000.

The previous prime is 69472981. The next prime is 69473021. The reversal of 69472986 is 68927496.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (69472981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6481 + ... + 13451.

It is an arithmetic number, because the mean of its divisors is an integer number (4768848).

Almost surely, 2^69472986 is an apocalyptic number.

69472986 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

69472986 is an abundant number, since it is smaller than the sum of its proper divisors (83130150).

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

69472986 is a wasteful number, since it uses less digits than its factorization.

69472986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7138.

The product of its digits is 1306368, while the sum is 51.

The square root of 69472986 is about 8335.0456507448. The cubic root of 69472986 is about 411.0916496320.

Subtracting from 69472986 its reverse (68927496), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 69472986 in words is "sixty-nine million, four hundred seventy-two thousand, nine hundred eighty-six".