9375997749 has 8 divisors (see below), whose sum is σ = 12512466912. Its totient is φ = 6245096880.

The previous prime is 9375997747. The next prime is 9375997751. The reversal of 9375997749 is 9477995739.

It is an interprime number because it is at equal distance from previous prime (9375997747) and next prime (9375997751).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9375997749 - 2¹ = 9375997747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9375997747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388142 + ... + 1394879.

It is an arithmetic number, because the mean of its divisors is an integer number (1564058364).

Almost surely, 2^9375997749 is an apocalyptic number.

It is an amenable number.

9375997749 is a deficient number, since it is larger than the sum of its proper divisors (3136469163).

9375997749 is a wasteful number, since it uses less digits than its factorization.

9375997749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784147.

The product of its digits is 135025380, while the sum is 69.

The square root of 9375997749 is about 96829.7358717868. The cubic root of 9375997749 is about 2108.6564636318.

The spelling of 9375997749 in words is "nine billion, three hundred seventy-five million, nine hundred ninety-seven thousand, seven hundred forty-nine".