445623877 has 2 divisors, whose sum is σ = 445623878. Its totient is φ = 445623876.

The previous prime is 445623859. The next prime is 445623881. The reversal of 445623877 is 778326544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287845156 + 157778721 = 16966^2 + 12561^2 .

It is a cyclic number.

It is not a de Polignac number, because 445623877 - 2¹¹ = 445621829 is a prime.

It is a super-2 number, since 2×445623877² = 397161279505022258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445623847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222811938 + 222811939.

It is an arithmetic number, because the mean of its divisors is an integer number (222811939).

Almost surely, 2^445623877 is an apocalyptic number.

It is an amenable number.

445623877 is a deficient number, since it is larger than the sum of its proper divisors (1).

445623877 is an equidigital number, since it uses as much as digits as its factorization.

445623877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 46.

The square root of 445623877 is about 21109.8052335875. The cubic root of 445623877 is about 763.8172887321.

The spelling of 445623877 in words is "four hundred forty-five million, six hundred twenty-three thousand, eight hundred seventy-seven".