9012358997 has 4 divisors (see below), whose sum is σ = 9012552780. Its totient is φ = 9012165216.

The previous prime is 9012358951. The next prime is 9012359003. The reversal of 9012358997 is 7998532109.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8531477956 + 480881041 = 92366^2 + 21929^2 .

It is a cyclic number.

It is not a de Polignac number, because 9012358997 - 2⁶ = 9012358933 is a prime.

It is a super-2 number, since 2×9012358997² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9012348997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19379 + ... + 135647.

It is an arithmetic number, because the mean of its divisors is an integer number (2253138195).

It is a Poulet number, since it divides 2^9012358996-1.

Almost surely, 2^9012358997 is an apocalyptic number.

9012358997 is the 77513-rd pentagonal number.

It is an amenable number.

9012358997 is a deficient number, since it is larger than the sum of its proper divisors (193783).

9012358997 is a wasteful number, since it uses less digits than its factorization.

9012358997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193782.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 9012358997 is about 94933.4450918116. The cubic root of 9012358997 is about 2081.0355264303.

The spelling of 9012358997 in words is "nine billion, twelve million, three hundred fifty-eight thousand, nine hundred ninety-seven".