649373001 has 4 divisors (see below), whose sum is σ = 865830672. Its totient is φ = 432915332.

The previous prime is 649372991. The next prime is 649373041. The reversal of 649373001 is 100373946.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 649373001 - 2⁹ = 649372489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (649373041) 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, 108228831 + ... + 108228836.

It is an arithmetic number, because the mean of its divisors is an integer number (216457668).

Almost surely, 2^649373001 is an apocalyptic number.

It is an amenable number.

649373001 is a deficient number, since it is larger than the sum of its proper divisors (216457671).

649373001 is a wasteful number, since it uses less digits than its factorization.

649373001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216457670.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 649373001 is about 25482.7981391369. The cubic root of 649373001 is about 865.9604869903.

The spelling of 649373001 in words is "six hundred forty-nine million, three hundred seventy-three thousand, one".