7620505 has 8 divisors (see below), whose sum is σ = 9682632. Its totient is φ = 5737728.

The previous prime is 7620497. The next prime is 7620523. The reversal of 7620505 is 5050267.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3426201 + 4194304 = 1851^2 + 2048^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7620505 - 2³ = 7620497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7620505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44742 + ... + 44911.

It is an arithmetic number, because the mean of its divisors is an integer number (1210329).

Almost surely, 2^7620505 is an apocalyptic number.

It is an amenable number.

7620505 is a deficient number, since it is larger than the sum of its proper divisors (2062127).

7620505 is a wasteful number, since it uses less digits than its factorization.

7620505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89675.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 7620505 is about 2760.5262179519. The cubic root of 7620505 is about 196.7861749300.

The spelling of 7620505 in words is "seven million, six hundred twenty thousand, five hundred five".