8990537 has 4 divisors (see below), whose sum is σ = 9007236. Its totient is φ = 8973840.

The previous prime is 8990533. The next prime is 8990543. The reversal of 8990537 is 7350998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7350998 = 2 ⋅3675499.

It can be written as a sum of positive squares in 2 ways, for example, as 2042041 + 6948496 = 1429^2 + 2636^2 .

It is a cyclic number.

It is not a de Polignac number, because 8990537 - 2² = 8990533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8990494 and 8990503.

It is not an unprimeable number, because it can be changed into a prime (8990533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7514 + ... + 8627.

It is an arithmetic number, because the mean of its divisors is an integer number (2251809).

Almost surely, 2^8990537 is an apocalyptic number.

It is an amenable number.

8990537 is a deficient number, since it is larger than the sum of its proper divisors (16699).

8990537 is a wasteful number, since it uses less digits than its factorization.

8990537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16698.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 8990537 is about 2998.4224185395. The cubic root of 8990537 is about 207.9354536531.

The spelling of 8990537 in words is "eight million, nine hundred ninety thousand, five hundred thirty-seven".