64477357 has 4 divisors (see below), whose sum is σ = 73688416. Its totient is φ = 55266300.

The previous prime is 64477337. The next prime is 64477363. The reversal of 64477357 is 75377446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64477357 - 2⁷ = 64477229 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 (64477327) 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 3 ways as a sum of consecutive naturals, for example, 4605519 + ... + 4605532.

It is an arithmetic number, because the mean of its divisors is an integer number (18422104).

Almost surely, 2^64477357 is an apocalyptic number.

It is an amenable number.

64477357 is a deficient number, since it is larger than the sum of its proper divisors (9211059).

64477357 is an equidigital number, since it uses as much as digits as its factorization.

64477357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211058.

The product of its digits is 493920, while the sum is 43.

The square root of 64477357 is about 8029.7793867578. The cubic root of 64477357 is about 400.9920314003.

The spelling of 64477357 in words is "sixty-four million, four hundred seventy-seven thousand, three hundred fifty-seven".