69940023 has 12 divisors (see below), whose sum is σ = 99062760. Its totient is φ = 43883392.

The previous prime is 69940009. The next prime is 69940037. The reversal of 69940023 is 32004996.

It is an interprime number because it is at equal distance from previous prime (69940009) and next prime (69940037).

It is not a de Polignac number, because 69940023 - 2¹² = 69935927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69940063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39468 + ... + 41201.

It is an arithmetic number, because the mean of its divisors is an integer number (8255230).

Almost surely, 2^69940023 is an apocalyptic number.

69940023 is a deficient number, since it is larger than the sum of its proper divisors (29122737).

69940023 is a wasteful number, since it uses less digits than its factorization.

69940023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80706 (or 80689 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 69940023 is about 8363.0151859243. The cubic root of 69940023 is about 412.0107904768.

The spelling of 69940023 in words is "sixty-nine million, nine hundred forty thousand, twenty-three".