36457621 has 2 divisors, whose sum is σ = 36457622. Its totient is φ = 36457620.

The previous prime is 36457613. The next prime is 36457657. The reversal of 36457621 is 12675463.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36360900 + 96721 = 6030^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 36457621 - 2³ = 36457613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36457661) 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, 18228810 + 18228811.

It is an arithmetic number, because the mean of its divisors is an integer number (18228811).

Almost surely, 2^36457621 is an apocalyptic number.

It is an amenable number.

36457621 is a deficient number, since it is larger than the sum of its proper divisors (1).

36457621 is an equidigital number, since it uses as much as digits as its factorization.

36457621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 36457621 is about 6038.0146571535. The cubic root of 36457621 is about 331.5859410896.

The spelling of 36457621 in words is "thirty-six million, four hundred fifty-seven thousand, six hundred twenty-one".