69926641 has 2 divisors, whose sum is σ = 69926642. Its totient is φ = 69926640.

The previous prime is 69926639. The next prime is 69926657. The reversal of 69926641 is 14662996.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68956416 + 970225 = 8304^2 + 985^2 .

It is a cyclic number.

It is not a de Polignac number, because 69926641 - 2¹ = 69926639 is a prime.

Together with 69926639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (69926611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34963320 + 34963321.

It is an arithmetic number, because the mean of its divisors is an integer number (34963321).

Almost surely, 2^69926641 is an apocalyptic number.

It is an amenable number.

69926641 is a deficient number, since it is larger than the sum of its proper divisors (1).

69926641 is an equidigital number, since it uses as much as digits as its factorization.

69926641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 69926641 is about 8362.2150773584. The cubic root of 69926641 is about 411.9845113887.

The spelling of 69926641 in words is "sixty-nine million, nine hundred twenty-six thousand, six hundred forty-one".