36921667 has 2 divisors, whose sum is σ = 36921668. Its totient is φ = 36921666.

The previous prime is 36921641. The next prime is 36921673. The reversal of 36921667 is 76612963.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36921667 - 2⁷ = 36921539 is a prime.

It is not a weakly prime, because it can be changed into another prime (36921697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18460833 + 18460834.

It is an arithmetic number, because the mean of its divisors is an integer number (18460834).

Almost surely, 2^36921667 is an apocalyptic number.

36921667 is a deficient number, since it is larger than the sum of its proper divisors (1).

36921667 is an equidigital number, since it uses as much as digits as its factorization.

36921667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 36921667 is about 6076.3201857703. The cubic root of 36921667 is about 332.9868632224.

The spelling of 36921667 in words is "thirty-six million, nine hundred twenty-one thousand, six hundred sixty-seven".