7620479 has 4 divisors (see below), whose sum is σ = 7712376. Its totient is φ = 7528584.

The previous prime is 7620469. The next prime is 7620491. The reversal of 7620479 is 9740267.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7620479 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620449) 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, 45824 + ... + 45989.

It is an arithmetic number, because the mean of its divisors is an integer number (1928094).

Almost surely, 2^7620479 is an apocalyptic number.

7620479 is a deficient number, since it is larger than the sum of its proper divisors (91897).

7620479 is an equidigital number, since it uses as much as digits as its factorization.

7620479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91896.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 7620479 is about 2760.5215087008. The cubic root of 7620479 is about 196.7859511282.

The spelling of 7620479 in words is "seven million, six hundred twenty thousand, four hundred seventy-nine".