64380757 has 8 divisors (see below), whose sum is σ = 75080000. Its totient is φ = 55183212.

The previous prime is 64380727. The next prime is 64380773. The reversal of 64380757 is 75708346.

It is not a de Polignac number, because 64380757 - 2¹¹ = 64378709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64380727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93507 + ... + 94192.

It is an arithmetic number, because the mean of its divisors is an integer number (9385000).

Almost surely, 2^64380757 is an apocalyptic number.

It is an amenable number.

64380757 is a deficient number, since it is larger than the sum of its proper divisors (10699243).

64380757 is an equidigital number, since it uses as much as digits as its factorization.

64380757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187720 (or 187706 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 64380757 is about 8023.7620228918. The cubic root of 64380757 is about 400.7916758397.

The spelling of 64380757 in words is "sixty-four million, three hundred eighty thousand, seven hundred fifty-seven".