69920469 has 16 divisors (see below), whose sum is σ = 106928640. Its totient is φ = 45109440.

The previous prime is 69920453. The next prime is 69920471. The reversal of 69920469 is 96402996.

It is not a de Polignac number, because 69920469 - 2⁴ = 69920453 is a prime.

It is a super-2 number, since 2×69920469² = 9777743970359922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69920489) 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, 40932 + ... + 42605.

It is an arithmetic number, because the mean of its divisors is an integer number (6683040).

Almost surely, 2^69920469 is an apocalyptic number.

It is an amenable number.

69920469 is a deficient number, since it is larger than the sum of its proper divisors (37008171).

69920469 is a wasteful number, since it uses less digits than its factorization.

69920469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83577 (or 83571 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 69920469 is about 8361.8460282404. The cubic root of 69920469 is about 411.9723899083.

The spelling of 69920469 in words is "sixty-nine million, nine hundred twenty thousand, four hundred sixty-nine".