64727955 has 12 divisors (see below), whose sum is σ = 112195200. Its totient is φ = 34521552.

The previous prime is 64727933. The next prime is 64728019. The reversal of 64727955 is 55972746.

It is not a de Polignac number, because 64727955 - 2⁷ = 64727827 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1438399 = 64727955 / (6 + 4 + 7 + 2 + 7 + 9 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 64727955.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 719155 + ... + 719244.

It is an arithmetic number, because the mean of its divisors is an integer number (9349600).

Almost surely, 2^64727955 is an apocalyptic number.

64727955 is a deficient number, since it is larger than the sum of its proper divisors (47467245).

64727955 is a wasteful number, since it uses less digits than its factorization.

64727955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438410 (or 1438407 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 64727955 is about 8045.3685434541. The cubic root of 64727955 is about 401.5108589944.

The spelling of 64727955 in words is "sixty-four million, seven hundred twenty-seven thousand, nine hundred fifty-five".