9977390 has 8 divisors (see below), whose sum is σ = 17959320. Its totient is φ = 3990952.

The previous prime is 9977389. The next prime is 9977399. The reversal of 9977390 is 937799.

9977390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×9977390² = 199096622424200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9977399) 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, 498860 + ... + 498879.

It is an arithmetic number, because the mean of its divisors is an integer number (2244915).

Almost surely, 2^9977390 is an apocalyptic number.

9977390 is a deficient number, since it is larger than the sum of its proper divisors (7981930).

9977390 is a wasteful number, since it uses less digits than its factorization.

9977390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997746.

The product of its (nonzero) digits is 107163, while the sum is 44.

The square root of 9977390 is about 3158.7006822426. The cubic root of 9977390 is about 215.2809739133.

The spelling of 9977390 in words is "nine million, nine hundred seventy-seven thousand, three hundred ninety".