69138894 has 16 divisors (see below), whose sum is σ = 150848640. Its totient is φ = 20951160.

The previous prime is 69138887. The next prime is 69138899. The reversal of 69138894 is 49883196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69138899) 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, 523714 + ... + 523845.

It is an arithmetic number, because the mean of its divisors is an integer number (9428040).

Almost surely, 2^69138894 is an apocalyptic number.

69138894 is an abundant number, since it is smaller than the sum of its proper divisors (81709746).

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

69138894 is a wasteful number, since it uses less digits than its factorization.

69138894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047575.

The product of its digits is 373248, while the sum is 48.

The square root of 69138894 is about 8314.9800961878. The cubic root of 69138894 is about 410.4316176447.

The spelling of 69138894 in words is "sixty-nine million, one hundred thirty-eight thousand, eight hundred ninety-four".