7990537 has 4 divisors (see below), whose sum is σ = 7998976. Its totient is φ = 7982100.

The previous prime is 7990519. The next prime is 7990559. The reversal of 7990537 is 7350997.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7350997 = 1097 ⋅6701.

It is a cyclic number.

It is not a de Polignac number, because 7990537 - 2¹⁵ = 7957769 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 7990537.

It is not an unprimeable number, because it can be changed into a prime (7990597) 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, 2589 + ... + 4762.

It is an arithmetic number, because the mean of its divisors is an integer number (1999744).

Almost surely, 2^7990537 is an apocalyptic number.

It is an amenable number.

7990537 is a deficient number, since it is larger than the sum of its proper divisors (8439).

7990537 is a wasteful number, since it uses less digits than its factorization.

7990537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8438.

The product of its (nonzero) digits is 59535, while the sum is 40.

The square root of 7990537 is about 2826.7537918963. The cubic root of 7990537 is about 199.9211105530.

The spelling of 7990537 in words is "seven million, nine hundred ninety thousand, five hundred thirty-seven".