64579451 has 2 divisors, whose sum is σ = 64579452. Its totient is φ = 64579450.

The previous prime is 64579439. The next prime is 64579483. The reversal of 64579451 is 15497546.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64579451 is a prime.

It is a super-2 number, since 2×64579451² = 8341010982922802, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64579399 and 64579408.

It is not a weakly prime, because it can be changed into another prime (64579051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32289725 + 32289726.

It is an arithmetic number, because the mean of its divisors is an integer number (32289726).

Almost surely, 2^64579451 is an apocalyptic number.

64579451 is a deficient number, since it is larger than the sum of its proper divisors (1).

64579451 is an equidigital number, since it uses as much as digits as its factorization.

64579451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 41.

The square root of 64579451 is about 8036.1340830028. The cubic root of 64579451 is about 401.2035645322.

The spelling of 64579451 in words is "sixty-four million, five hundred seventy-nine thousand, four hundred fifty-one".