36724991 has 4 divisors (see below), whose sum is σ = 37991400. Its totient is φ = 35458584.

The previous prime is 36724973. The next prime is 36724993. The reversal of 36724991 is 19942763.

36724991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19942763 = 2593 ⋅7691.

It is a cyclic number.

It is not a de Polignac number, because 36724991 - 2¹⁸ = 36462847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36724993) 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, 633161 + ... + 633218.

It is an arithmetic number, because the mean of its divisors is an integer number (9497850).

Almost surely, 2^36724991 is an apocalyptic number.

36724991 is a deficient number, since it is larger than the sum of its proper divisors (1266409).

36724991 is a wasteful number, since it uses less digits than its factorization.

36724991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266408.

The product of its digits is 81648, while the sum is 41.

The square root of 36724991 is about 6060.1147678901. The cubic root of 36724991 is about 332.3945537831.

The spelling of 36724991 in words is "thirty-six million, seven hundred twenty-four thousand, nine hundred ninety-one".