427637801 has 2 divisors, whose sum is σ = 427637802. Its totient is φ = 427637800.

The previous prime is 427637773. The next prime is 427637813. The reversal of 427637801 is 108736724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400960576 + 26677225 = 20024^2 + 5165^2 .

It is a cyclic number.

It is not a de Polignac number, because 427637801 - 2²⁶ = 360528937 is a prime.

It is a super-4 number, since 4×427637801⁴ (a number of 36 digits) contains 4444 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427637851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213818900 + 213818901.

It is an arithmetic number, because the mean of its divisors is an integer number (213818901).

Almost surely, 2^427637801 is an apocalyptic number.

It is an amenable number.

427637801 is a deficient number, since it is larger than the sum of its proper divisors (1).

427637801 is an equidigital number, since it uses as much as digits as its factorization.

427637801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 427637801 is about 20679.4052380623. The cubic root of 427637801 is about 753.3995605537.

The spelling of 427637801 in words is "four hundred twenty-seven million, six hundred thirty-seven thousand, eight hundred one".