64403654 has 16 divisors (see below), whose sum is σ = 116217600. Its totient is φ = 26148744.

The previous prime is 64403653. The next prime is 64403671. The reversal of 64403654 is 45630446.

It is a self number, because there is not a number n which added to its sum of digits gives 64403654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64403653) 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, 120794 + ... + 121325.

It is an arithmetic number, because the mean of its divisors is an integer number (7263600).

Almost surely, 2^64403654 is an apocalyptic number.

64403654 is a deficient number, since it is larger than the sum of its proper divisors (51813946).

64403654 is a wasteful number, since it uses less digits than its factorization.

64403654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242147.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 64403654 is about 8025.1887205224. The cubic root of 64403654 is about 400.8391840275.

The spelling of 64403654 in words is "sixty-four million, four hundred three thousand, six hundred fifty-four".