69936091 has 4 divisors (see below), whose sum is σ = 70074000. Its totient is φ = 69798184.

The previous prime is 69936089. The next prime is 69936101. The reversal of 69936091 is 19063996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 69936091 - 2¹ = 69936089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69936001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68191 + ... + 69208.

It is an arithmetic number, because the mean of its divisors is an integer number (17518500).

Almost surely, 2^69936091 is an apocalyptic number.

69936091 is a deficient number, since it is larger than the sum of its proper divisors (137909).

69936091 is a wasteful number, since it uses less digits than its factorization.

69936091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137908.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 69936091 is about 8362.7800999428. The cubic root of 69936091 is about 412.0030693051.

The spelling of 69936091 in words is "sixty-nine million, nine hundred thirty-six thousand, ninety-one".