4651990 has 16 divisors (see below), whose sum is σ = 9569952. Its totient is φ = 1594944.

The previous prime is 4651987. The next prime is 4652027. The reversal of 4651990 is 991564.

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, 33159 + ... + 33298.

It is an arithmetic number, because the mean of its divisors is an integer number (598122).

Almost surely, 2^4651990 is an apocalyptic number.

4651990 is an abundant number, since it is smaller than the sum of its proper divisors (4917962).

4651990 is a wasteful number, since it uses less digits than its factorization.

4651990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66471.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 4651990 is about 2156.8472361296. The cubic root of 4651990 is about 166.9345602785.

The spelling of 4651990 in words is "four million, six hundred fifty-one thousand, nine hundred ninety".