992925991 has 2 divisors, whose sum is σ = 992925992. Its totient is φ = 992925990.

The previous prime is 992925971. The next prime is 992926007. The reversal of 992925991 is 199529299.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 992925991 - 2¹³ = 992917799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992925931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496462995 + 496462996.

It is an arithmetic number, because the mean of its divisors is an integer number (496462996).

Almost surely, 2^992925991 is an apocalyptic number.

992925991 is a deficient number, since it is larger than the sum of its proper divisors (1).

992925991 is an equidigital number, since it uses as much as digits as its factorization.

992925991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 55.

The square root of 992925991 is about 31510.7281889835. The cubic root of 992925991 is about 997.6364148667.

The spelling of 992925991 in words is "nine hundred ninety-two million, nine hundred twenty-five thousand, nine hundred ninety-one".