7661650 has 24 divisors (see below), whose sum is σ = 14713344. Its totient is φ = 2965200.

The previous prime is 7661639. The next prime is 7661663. The reversal of 7661650 is 561667.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 922 + ... + 4021.

It is an arithmetic number, because the mean of its divisors is an integer number (613056).

Almost surely, 2^7661650 is an apocalyptic number.

7661650 is a deficient number, since it is larger than the sum of its proper divisors (7051694).

7661650 is a wasteful number, since it uses less digits than its factorization.

7661650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986 (or 4981 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 7661650 is about 2767.9685691857. The cubic root of 7661650 is about 197.1397052436.

The spelling of 7661650 in words is "seven million, six hundred sixty-one thousand, six hundred fifty".