64764371 has 8 divisors (see below), whose sum is σ = 75230304. Its totient is φ = 54601920.

The previous prime is 64764317. The next prime is 64764377. The reversal of 64764371 is 17346746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64764371 - 2¹⁴ = 64747987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64764377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75410 + ... + 76263.

It is an arithmetic number, because the mean of its divisors is an integer number (9403788).

Almost surely, 2^64764371 is an apocalyptic number.

64764371 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

64764371 is a deficient number, since it is larger than the sum of its proper divisors (10465933).

64764371 is a wasteful number, since it uses less digits than its factorization.

64764371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151741.

The product of its digits is 84672, while the sum is 38.

The square root of 64764371 is about 8047.6313906640. The cubic root of 64764371 is about 401.5861416564.

The spelling of 64764371 in words is "sixty-four million, seven hundred sixty-four thousand, three hundred seventy-one".