64261477 has 16 divisors (see below), whose sum is σ = 79977600. Its totient is φ = 50379840.

The previous prime is 64261459. The next prime is 64261499. The reversal of 64261477 is 77416246.

It is not a de Polignac number, because 64261477 - 2¹⁹ = 63737189 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 (64261427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4474 + ... + 12187.

It is an arithmetic number, because the mean of its divisors is an integer number (4998600).

Almost surely, 2^64261477 is an apocalyptic number.

It is an amenable number.

64261477 is a deficient number, since it is larger than the sum of its proper divisors (15716123).

64261477 is a wasteful number, since it uses less digits than its factorization.

64261477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16716.

The product of its digits is 56448, while the sum is 37.

The square root of 64261477 is about 8016.3256545627. The cubic root of 64261477 is about 400.5440035649.

The spelling of 64261477 in words is "sixty-four million, two hundred sixty-one thousand, four hundred seventy-seven".