7900531 has 2 divisors, whose sum is σ = 7900532. Its totient is φ = 7900530.

The previous prime is 7900481. The next prime is 7900547. The reversal of 7900531 is 1350097.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7900531 is a prime.

It is a super-2 number, since 2×7900531² = 124836780163922, which contains 22 as substring.

7900531 is a lucky number.

It is equal to p₅₃₃₅₃₆ and since 7900531 and 533536 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 7900496 and 7900505.

It is not a weakly prime, because it can be changed into another prime (7900231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3950265 + 3950266.

It is an arithmetic number, because the mean of its divisors is an integer number (3950266).

Almost surely, 2^7900531 is an apocalyptic number.

7900531 is a deficient number, since it is larger than the sum of its proper divisors (1).

7900531 is an equidigital number, since it uses as much as digits as its factorization.

7900531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 7900531 is about 2810.7883235847. The cubic root of 7900531 is about 199.1676322924.

The spelling of 7900531 in words is "seven million, nine hundred thousand, five hundred thirty-one".