64797450 has 24 divisors (see below), whose sum is σ = 160698048. Its totient is φ = 17279280.

The previous prime is 64797449. The next prime is 64797479. The reversal of 64797450 is 5479746.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215842 + ... + 216141.

It is an arithmetic number, because the mean of its divisors is an integer number (6695752).

Almost surely, 2^64797450 is an apocalyptic number.

64797450 is an abundant number, since it is smaller than the sum of its proper divisors (95900598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64797450 is a wasteful number, since it uses less digits than its factorization.

64797450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431998 (or 431993 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 64797450 is about 8049.6863292926. The cubic root of 64797450 is about 401.6545012949.

The spelling of 64797450 in words is "sixty-four million, seven hundred ninety-seven thousand, four hundred fifty".