4997537 has 4 divisors (see below), whose sum is σ = 5049156. Its totient is φ = 4945920.

The previous prime is 4997533. The next prime is 4997539. The reversal of 4997537 is 7357994.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 654481 + 4343056 = 809^2 + 2084^2 .

It is a cyclic number.

It is not a de Polignac number, because 4997537 - 2² = 4997533 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4997533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25664 + ... + 25857.

It is an arithmetic number, because the mean of its divisors is an integer number (1262289).

Almost surely, 2^4997537 is an apocalyptic number.

It is an amenable number.

4997537 is a deficient number, since it is larger than the sum of its proper divisors (51619).

4997537 is an equidigital number, since it uses as much as digits as its factorization.

4997537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51618.

The product of its digits is 238140, while the sum is 44.

The square root of 4997537 is about 2235.5171661162. The cubic root of 4997537 is about 170.9695122510.

The spelling of 4997537 in words is "four million, nine hundred ninety-seven thousand, five hundred thirty-seven".