7364921 has 4 divisors (see below), whose sum is σ = 7414500. Its totient is φ = 7315344.

The previous prime is 7364909. The next prime is 7364923. The reversal of 7364921 is 1294637.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1294637 = 59 ⋅21943.

It can be written as a sum of positive squares in 2 ways, for example, as 2524921 + 4840000 = 1589^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 7364921 - 2¹⁰ = 7363897 is a prime.

It is a super-2 number, since 2×7364921² = 108484122672482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7364923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24566 + ... + 24863.

It is an arithmetic number, because the mean of its divisors is an integer number (1853625).

Almost surely, 2^7364921 is an apocalyptic number.

It is an amenable number.

7364921 is a deficient number, since it is larger than the sum of its proper divisors (49579).

7364921 is a wasteful number, since it uses less digits than its factorization.

7364921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49578.

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

The square root of 7364921 is about 2713.8387940333. The cubic root of 7364921 is about 194.5611080275.

The spelling of 7364921 in words is "seven million, three hundred sixty-four thousand, nine hundred twenty-one".