649707001 has 4 divisors (see below), whose sum is σ = 649873152. Its totient is φ = 649540852.

The previous prime is 649706983. The next prime is 649707007. The reversal of 649707001 is 100707946.

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 649707001 - 2¹¹ = 649704953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649707007) 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, 77065 + ... + 85078.

It is an arithmetic number, because the mean of its divisors is an integer number (162468288).

Almost surely, 2^649707001 is an apocalyptic number.

It is an amenable number.

649707001 is a deficient number, since it is larger than the sum of its proper divisors (166151).

649707001 is a wasteful number, since it uses less digits than its factorization.

649707001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166150.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 649707001 is about 25489.3507371216. The cubic root of 649707001 is about 866.1089282449.

The spelling of 649707001 in words is "six hundred forty-nine million, seven hundred seven thousand, one".