64047371 has 4 divisors (see below), whose sum is σ = 65609544. Its totient is φ = 62485200.

The previous prime is 64047359. The next prime is 64047397. The reversal of 64047371 is 17374046.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64047371 - 2⁶ = 64047307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64047671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781025 + ... + 781106.

It is an arithmetic number, because the mean of its divisors is an integer number (16402386).

Almost surely, 2^64047371 is an apocalyptic number.

64047371 is a deficient number, since it is larger than the sum of its proper divisors (1562173).

64047371 is a wasteful number, since it uses less digits than its factorization.

64047371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562172.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 64047371 is about 8002.9601398483. The cubic root of 64047371 is about 400.0986652443.

The spelling of 64047371 in words is "sixty-four million, forty-seven thousand, three hundred seventy-one".