7872290399 has 2 divisors, whose sum is σ = 7872290400. Its totient is φ = 7872290398.

The previous prime is 7872290383. The next prime is 7872290411. The reversal of 7872290399 is 9930922787.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7872290399 - 2⁴ = 7872290383 is a prime.

It is a super-2 number, since 2×7872290399² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7872290329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936145199 + 3936145200.

It is an arithmetic number, because the mean of its divisors is an integer number (3936145200).

Almost surely, 2^7872290399 is an apocalyptic number.

7872290399 is a deficient number, since it is larger than the sum of its proper divisors (1).

7872290399 is an equidigital number, since it uses as much as digits as its factorization.

7872290399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 7872290399 is about 88725.9285609342. The cubic root of 7872290399 is about 1989.3003945472.

The spelling of 7872290399 in words is "seven billion, eight hundred seventy-two million, two hundred ninety thousand, three hundred ninety-nine".