7621090 has 16 divisors (see below), whose sum is σ = 14440320. Its totient is φ = 2887920.

The previous prime is 7621087. The next prime is 7621093. The reversal of 7621090 is 901267.

It is an interprime number because it is at equal distance from previous prime (7621087) and next prime (7621093).

It is not an unprimeable number, because it can be changed into a prime (7621093) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19866 + ... + 20245.

It is an arithmetic number, because the mean of its divisors is an integer number (902520).

Almost surely, 2^7621090 is an apocalyptic number.

7621090 is a deficient number, since it is larger than the sum of its proper divisors (6819230).

7621090 is a wasteful number, since it uses less digits than its factorization.

7621090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40137.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 7621090 is about 2760.6321739775. The cubic root of 7621090 is about 196.7912103341.

The spelling of 7621090 in words is "seven million, six hundred twenty-one thousand, ninety".