36677521 has 4 divisors (see below), whose sum is σ = 36740592. Its totient is φ = 36614452.

The previous prime is 36677507. The next prime is 36677533. The reversal of 36677521 is 12577663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36677521 - 2⁹ = 36677009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36677591) 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, 30655 + ... + 31828.

It is an arithmetic number, because the mean of its divisors is an integer number (9185148).

Almost surely, 2^36677521 is an apocalyptic number.

It is an amenable number.

36677521 is a deficient number, since it is larger than the sum of its proper divisors (63071).

36677521 is an equidigital number, since it uses as much as digits as its factorization.

36677521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63070.

The product of its digits is 52920, while the sum is 37.

The square root of 36677521 is about 6056.1969089520. The cubic root of 36677521 is about 332.2512764819.

It can be divided in two parts, 366775 and 21, that added together give a triangular number (366796 = T₈₅₆).

The spelling of 36677521 in words is "thirty-six million, six hundred seventy-seven thousand, five hundred twenty-one".