7413921 has 24 divisors (see below), whose sum is σ = 11591424. Its totient is φ = 4548480.

The previous prime is 7413919. The next prime is 7413977. The reversal of 7413921 is 1293147.

It is not a de Polignac number, because 7413921 - 2¹ = 7413919 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7413221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6676 + ... + 7706.

It is an arithmetic number, because the mean of its divisors is an integer number (482976).

Almost surely, 2^7413921 is an apocalyptic number.

It is an amenable number.

7413921 is a deficient number, since it is larger than the sum of its proper divisors (4177503).

7413921 is a wasteful number, since it uses less digits than its factorization.

7413921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101 (or 1098 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 7413921 is about 2722.8516301848. The cubic root of 7413921 is about 194.9916367222.

The spelling of 7413921 in words is "seven million, four hundred thirteen thousand, nine hundred twenty-one".