69404894 has 8 divisors (see below), whose sum is σ = 112115640. Its totient is φ = 32033016.

The previous prime is 69404857. The next prime is 69404899. The reversal of 69404894 is 49840496.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×69404894² = 9634078622302472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69404899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1334684 + ... + 1334735.

It is an arithmetic number, because the mean of its divisors is an integer number (14014455).

Almost surely, 2^69404894 is an apocalyptic number.

69404894 is a deficient number, since it is larger than the sum of its proper divisors (42710746).

69404894 is a wasteful number, since it uses less digits than its factorization.

69404894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669434.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 69404894 is about 8330.9599686951. The cubic root of 69404894 is about 410.9572990764.

The spelling of 69404894 in words is "sixty-nine million, four hundred four thousand, eight hundred ninety-four".