36742421 has 2 divisors, whose sum is σ = 36742422. Its totient is φ = 36742420.

The previous prime is 36742403. The next prime is 36742463. The reversal of 36742421 is 12424763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19018321 + 17724100 = 4361^2 + 4210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36742421 is a prime.

It is a Chen prime.

It is equal to p_2246870 and since 36742421 and 2246870 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36742481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18371210 + 18371211.

It is an arithmetic number, because the mean of its divisors is an integer number (18371211).

Almost surely, 2^36742421 is an apocalyptic number.

It is an amenable number.

36742421 is a deficient number, since it is larger than the sum of its proper divisors (1).

36742421 is an equidigital number, since it uses as much as digits as its factorization.

36742421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 36742421 is about 6061.5526888744. The cubic root of 36742421 is about 332.4471312478.

The spelling of 36742421 in words is "thirty-six million, seven hundred forty-two thousand, four hundred twenty-one".