9371990361 has 4 divisors (see below), whose sum is σ = 12495987152. Its totient is φ = 6247993572.

The previous prime is 9371990359. The next prime is 9371990363. The reversal of 9371990361 is 1630991739.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (9371990359) and next prime (9371990363).

It is not a de Polignac number, because 9371990361 - 2¹ = 9371990359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9371990361.

It is not an unprimeable number, because it can be changed into a prime (9371990363) 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, 1561998391 + ... + 1561998396.

It is an arithmetic number, because the mean of its divisors is an integer number (3123996788).

Almost surely, 2^9371990361 is an apocalyptic number.

It is an amenable number.

9371990361 is a deficient number, since it is larger than the sum of its proper divisors (3123996791).

9371990361 is a wasteful number, since it uses less digits than its factorization.

9371990361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123996790.

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 9371990361 is about 96809.0406986868. The cubic root of 9371990361 is about 2108.3560010742.

The spelling of 9371990361 in words is "nine billion, three hundred seventy-one million, nine hundred ninety thousand, three hundred sixty-one".