4991524 has 6 divisors (see below), whose sum is σ = 8735174. Its totient is φ = 2495760.

The previous prime is 4991507. The next prime is 4991543. The reversal of 4991524 is 4251994.

It can be written as a sum of positive squares in only one way, i.e., 4761124 + 230400 = 2182^2 + 480^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4991524.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623937 + ... + 623944.

Almost surely, 2^4991524 is an apocalyptic number.

It is an amenable number.

4991524 is a deficient number, since it is larger than the sum of its proper divisors (3743650).

4991524 is a wasteful number, since it uses less digits than its factorization.

4991524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247885 (or 1247883 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The square root of 4991524 is about 2234.1718823761. The cubic root of 4991524 is about 170.9009149758.

The spelling of 4991524 in words is "four million, nine hundred ninety-one thousand, five hundred twenty-four".