424721677 has 2 divisors, whose sum is σ = 424721678. Its totient is φ = 424721676.

The previous prime is 424721641. The next prime is 424721699. The reversal of 424721677 is 776127424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288626121 + 136095556 = 16989^2 + 11666^2 .

It is a cyclic number.

It is not a de Polignac number, because 424721677 - 2²⁷ = 290503949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424721177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212360838 + 212360839.

It is an arithmetic number, because the mean of its divisors is an integer number (212360839).

Almost surely, 2^424721677 is an apocalyptic number.

It is an amenable number.

424721677 is a deficient number, since it is larger than the sum of its proper divisors (1).

424721677 is an equidigital number, since it uses as much as digits as its factorization.

424721677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131712, while the sum is 40.

The square root of 424721677 is about 20608.7766982905. The cubic root of 424721677 is about 751.6831395995.

The spelling of 424721677 in words is "four hundred twenty-four million, seven hundred twenty-one thousand, six hundred seventy-seven".