7240979 has 4 divisors (see below), whose sum is σ = 7307520. Its totient is φ = 7174440.

The previous prime is 7240973. The next prime is 7240991. The reversal of 7240979 is 9790427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9790427 = 233 ⋅42019.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7240979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7240973) 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, 33107 + ... + 33324.

It is an arithmetic number, because the mean of its divisors is an integer number (1826880).

Almost surely, 2^7240979 is an apocalyptic number.

7240979 is a deficient number, since it is larger than the sum of its proper divisors (66541).

7240979 is a wasteful number, since it uses less digits than its factorization.

7240979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66540.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 7240979 is about 2690.9067245076. The cubic root of 7240979 is about 193.4635247412.

The spelling of 7240979 in words is "seven million, two hundred forty thousand, nine hundred seventy-nine".