64992003 has 8 divisors (see below), whose sum is σ = 91753488. Its totient is φ = 40779264.

The previous prime is 64991977. The next prime is 64992019. The reversal of 64992003 is 30029946.

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

It is not a de Polignac number, because 64992003 - 2⁸ = 64991747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64992203) 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, 637126 + ... + 637227.

It is an arithmetic number, because the mean of its divisors is an integer number (11469186).

Almost surely, 2^64992003 is an apocalyptic number.

64992003 is a deficient number, since it is larger than the sum of its proper divisors (26761485).

64992003 is a wasteful number, since it uses less digits than its factorization.

64992003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274373.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 64992003 is about 8061.7617801570. The cubic root of 64992003 is about 402.0560860832.

The spelling of 64992003 in words is "sixty-four million, nine hundred ninety-two thousand, three".