421074737 has 4 divisors (see below), whose sum is σ = 421134336. Its totient is φ = 421015140.

The previous prime is 421074727. The next prime is 421074743. The reversal of 421074737 is 737470124.

It is a happy number.

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 421074737 - 2⁸ = 421074481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421074697 and 421074706.

It is not an unprimeable number, because it can be changed into a prime (421074707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17513 + ... + 33894.

It is an arithmetic number, because the mean of its divisors is an integer number (105283584).

Almost surely, 2^421074737 is an apocalyptic number.

It is an amenable number.

421074737 is a deficient number, since it is larger than the sum of its proper divisors (59599).

421074737 is an equidigital number, since it uses as much as digits as its factorization.

421074737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59598.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 421074737 is about 20520.1056771158. The cubic root of 421074737 is about 749.5254698990.

The spelling of 421074737 in words is "four hundred twenty-one million, seventy-four thousand, seven hundred thirty-seven".