623675077 has 2 divisors, whose sum is σ = 623675078. Its totient is φ = 623675076.

The previous prime is 623675051. The next prime is 623675099. The reversal of 623675077 is 770576326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 603881476 + 19793601 = 24574^2 + 4449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623675077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623675677) 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 as a sum of consecutive naturals, namely, 311837538 + 311837539.

It is an arithmetic number, because the mean of its divisors is an integer number (311837539).

Almost surely, 2^623675077 is an apocalyptic number.

It is an amenable number.

623675077 is a deficient number, since it is larger than the sum of its proper divisors (1).

623675077 is an equidigital number, since it uses as much as digits as its factorization.

623675077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370440, while the sum is 43.

The square root of 623675077 is about 24973.4874817275. The cubic root of 623675077 is about 854.3833895328.

The spelling of 623675077 in words is "six hundred twenty-three million, six hundred seventy-five thousand, seventy-seven".