36812491 has 2 divisors, whose sum is σ = 36812492. Its totient is φ = 36812490.

The previous prime is 36812483. The next prime is 36812507. The reversal of 36812491 is 19421863.

It is a weak prime.

It is an emirp because it is prime and its reverse (19421863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36812491 - 2³ = 36812483 is a prime.

It is a pancake number, because a pancake can be divided into 36812491 parts by 8580 straight cuts.

It is not a weakly prime, because it can be changed into another prime (36812411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18406245 + 18406246.

It is an arithmetic number, because the mean of its divisors is an integer number (18406246).

Almost surely, 2^36812491 is an apocalyptic number.

36812491 is a deficient number, since it is larger than the sum of its proper divisors (1).

36812491 is an equidigital number, since it uses as much as digits as its factorization.

36812491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 36812491 is about 6067.3298080787. The cubic root of 36812491 is about 332.6583292534.

The spelling of 36812491 in words is "thirty-six million, eight hundred twelve thousand, four hundred ninety-one".