64047349 has 2 divisors, whose sum is σ = 64047350. Its totient is φ = 64047348.

The previous prime is 64047329. The next prime is 64047359. The reversal of 64047349 is 94374046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57380625 + 6666724 = 7575^2 + 2582^2 .

It is a cyclic number.

It is not a de Polignac number, because 64047349 - 2²³ = 55658741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64047329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32023674 + 32023675.

It is an arithmetic number, because the mean of its divisors is an integer number (32023675).

Almost surely, 2^64047349 is an apocalyptic number.

It is an amenable number.

64047349 is a deficient number, since it is larger than the sum of its proper divisors (1).

64047349 is an equidigital number, since it uses as much as digits as its factorization.

64047349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 64047349 is about 8002.9587653567. The cubic root of 64047349 is about 400.0986194335.

The spelling of 64047349 in words is "sixty-four million, forty-seven thousand, three hundred forty-nine".