7634921 has 16 divisors (see below), whose sum is σ = 9362304. Its totient is φ = 6077184.

The previous prime is 7634911. The next prime is 7634923. The reversal of 7634921 is 1294367.

7634921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7634921 - 2¹⁰ = 7633897 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7634923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9491 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (585144).

Almost surely, 2^7634921 is an apocalyptic number.

It is an amenable number.

7634921 is a deficient number, since it is larger than the sum of its proper divisors (1727383).

7634921 is a wasteful number, since it uses less digits than its factorization.

7634921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its digits is 9072, while the sum is 32.

The square root of 7634921 is about 2763.1360806156. The cubic root of 7634921 is about 196.9101860685.

The spelling of 7634921 in words is "seven million, six hundred thirty-four thousand, nine hundred twenty-one".