623266877 has 2 divisors, whose sum is σ = 623266878. Its totient is φ = 623266876.

The previous prime is 623266817. The next prime is 623266883. The reversal of 623266877 is 778662326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 528126361 + 95140516 = 22981^2 + 9754^2 .

It is a cyclic number.

It is not a de Polignac number, because 623266877 - 2²⁴ = 606489661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623266817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311633438 + 311633439.

It is an arithmetic number, because the mean of its divisors is an integer number (311633439).

Almost surely, 2^623266877 is an apocalyptic number.

It is an amenable number.

623266877 is a deficient number, since it is larger than the sum of its proper divisors (1).

623266877 is an equidigital number, since it uses as much as digits as its factorization.

623266877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 47.

The square root of 623266877 is about 24965.3134769023. The cubic root of 623266877 is about 854.1969487462.

The spelling of 623266877 in words is "six hundred twenty-three million, two hundred sixty-six thousand, eight hundred seventy-seven".