7900537 has 4 divisors (see below), whose sum is σ = 8030116. Its totient is φ = 7770960.

The previous prime is 7900531. The next prime is 7900547. The reversal of 7900537 is 7350097.

It is the 1148-th star number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7350097 = 2417 ⋅3041.

It can be written as a sum of positive squares in 2 ways, for example, as 2499561 + 5400976 = 1581^2 + 2324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7900537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7900499 and 7900508.

It is not an unprimeable number, because it can be changed into a prime (7900531) 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 in 3 ways as a sum of consecutive naturals, for example, 64698 + ... + 64819.

It is an arithmetic number, because the mean of its divisors is an integer number (2007529).

Almost surely, 2^7900537 is an apocalyptic number.

It is an amenable number.

7900537 is a deficient number, since it is larger than the sum of its proper divisors (129579).

7900537 is a wasteful number, since it uses less digits than its factorization.

7900537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129578.

The product of its (nonzero) digits is 6615, while the sum is 31.

The square root of 7900537 is about 2810.7893909007. The cubic root of 7900537 is about 199.1676827112.

The spelling of 7900537 in words is "seven million, nine hundred thousand, five hundred thirty-seven".