64914399 has 32 divisors (see below), whose sum is σ = 105799680. Its totient is φ = 39009600.

The previous prime is 64914359. The next prime is 64914407. The reversal of 64914399 is 99341946.

It is not a de Polignac number, because 64914399 - 2⁹ = 64913887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64914329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36859 + ... + 38579.

It is an arithmetic number, because the mean of its divisors is an integer number (3306240).

Almost surely, 2^64914399 is an apocalyptic number.

64914399 is a deficient number, since it is larger than the sum of its proper divisors (40885281).

64914399 is a wasteful number, since it uses less digits than its factorization.

64914399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868 (or 1862 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 64914399 is about 8056.9472506651. The cubic root of 64914399 is about 401.8959967084.

The spelling of 64914399 in words is "sixty-four million, nine hundred fourteen thousand, three hundred ninety-nine".