69412621 has 4 divisors (see below), whose sum is σ = 71026912. Its totient is φ = 67798332.

The previous prime is 69412543. The next prime is 69412633. The reversal of 69412621 is 12621496.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69412621 - 2²³ = 61024013 is a prime.

It is a super-3 number, since 3×69412621³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69412661) 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, 807081 + ... + 807166.

It is an arithmetic number, because the mean of its divisors is an integer number (17756728).

Almost surely, 2^69412621 is an apocalyptic number.

It is an amenable number.

69412621 is a deficient number, since it is larger than the sum of its proper divisors (1614291).

69412621 is a wasteful number, since it uses less digits than its factorization.

69412621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614290.

The product of its digits is 5184, while the sum is 31.

The square root of 69412621 is about 8331.4237078665. The cubic root of 69412621 is about 410.9725494381.

The spelling of 69412621 in words is "sixty-nine million, four hundred twelve thousand, six hundred twenty-one".