7621901 has 12 divisors (see below), whose sum is σ = 9253152. Its totient is φ = 6248088.

The previous prime is 7621891. The next prime is 7621903. The reversal of 7621901 is 1091267.

7621901 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7621901 - 2⁶ = 7621837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7621903) 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 11 ways as a sum of consecutive naturals, for example, 2255 + ... + 4508.

It is an arithmetic number, because the mean of its divisors is an integer number (771096).

Almost surely, 2^7621901 is an apocalyptic number.

It is an amenable number.

7621901 is a deficient number, since it is larger than the sum of its proper divisors (1631251).

7621901 is a wasteful number, since it uses less digits than its factorization.

7621901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6800 (or 6793 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 7621901 is about 2760.7790567157. The cubic root of 7621901 is about 196.7981906134.

The spelling of 7621901 in words is "seven million, six hundred twenty-one thousand, nine hundred one".