7880513 has 6 divisors (see below), whose sum is σ = 8238594. Its totient is φ = 7537376.

The previous prime is 7880471. The next prime is 7880531. The reversal of 7880513 is 3150887.

It can be written as a sum of positive squares in only one way, i.e., 7745089 + 135424 = 2783^2 + 368^2 .

It is not a de Polignac number, because 7880513 - 2⁶ = 7880449 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 7880513.

It is not an unprimeable number, because it can be changed into a prime (7880533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6920 + ... + 7977.

It is an arithmetic number, because the mean of its divisors is an integer number (1373099).

Almost surely, 2^7880513 is an apocalyptic number.

It is an amenable number.

7880513 is a deficient number, since it is larger than the sum of its proper divisors (358081).

7880513 is a wasteful number, since it uses less digits than its factorization.

7880513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14943 (or 14920 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 7880513 is about 2807.2251423781. The cubic root of 7880513 is about 198.9992761099. Note that the first 3 decimals are identical.

The spelling of 7880513 in words is "seven million, eight hundred eighty thousand, five hundred thirteen".