69972621 has 8 divisors (see below), whose sum is σ = 96514080. Its totient is φ = 45039792.

The previous prime is 69972607. The next prime is 69972631. The reversal of 69972621 is 12627996.

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

It is not a de Polignac number, because 69972621 - 2⁶ = 69972557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69972631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402055 + ... + 402228.

It is an arithmetic number, because the mean of its divisors is an integer number (12064260).

Almost surely, 2^69972621 is an apocalyptic number.

It is an amenable number.

69972621 is a deficient number, since it is larger than the sum of its proper divisors (26541459).

69972621 is a wasteful number, since it uses less digits than its factorization.

69972621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804315.

The product of its digits is 81648, while the sum is 42.

The square root of 69972621 is about 8364.9638971128. The cubic root of 69972621 is about 412.0747912263.

The spelling of 69972621 in words is "sixty-nine million, nine hundred seventy-two thousand, six hundred twenty-one".