69464921 has 2 divisors, whose sum is σ = 69464922. Its totient is φ = 69464920.

The previous prime is 69464917. The next prime is 69464929. The reversal of 69464921 is 12946496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40960000 + 28504921 = 6400^2 + 5339^2 .

It is a cyclic number.

It is not a de Polignac number, because 69464921 - 2² = 69464917 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69464929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34732460 + 34732461.

It is an arithmetic number, because the mean of its divisors is an integer number (34732461).

Almost surely, 2^69464921 is an apocalyptic number.

It is an amenable number.

69464921 is a deficient number, since it is larger than the sum of its proper divisors (1).

69464921 is an equidigital number, since it uses as much as digits as its factorization.

69464921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 69464921 is about 8334.5618361135. The cubic root of 69464921 is about 411.0757413745.

The spelling of 69464921 in words is "sixty-nine million, four hundred sixty-four thousand, nine hundred twenty-one".