649697846 has 16 divisors (see below), whose sum is σ = 1152174240. Its totient is φ = 268840320.

The previous prime is 649697833. The next prime is 649697897. The reversal of 649697846 is 648796946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799715 + ... + 800526.

It is an arithmetic number, because the mean of its divisors is an integer number (72010890).

Almost surely, 2^649697846 is an apocalyptic number.

649697846 is a deficient number, since it is larger than the sum of its proper divisors (502476394).

649697846 is a wasteful number, since it uses less digits than its factorization.

649697846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600279.

The product of its digits is 15676416, while the sum is 59.

The square root of 649697846 is about 25489.1711516871. The cubic root of 649697846 is about 866.1048601216.

The spelling of 649697846 in words is "six hundred forty-nine million, six hundred ninety-seven thousand, eight hundred forty-six".