9976407 has 16 divisors (see below), whose sum is σ = 15574272. Its totient is φ = 5561280.

The previous prime is 9976381. The next prime is 9976409. The reversal of 9976407 is 7046799.

9976407 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9976407 - 2⁷ = 9976279 is a prime.

9976407 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9976409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4933 + ... + 6654.

It is an arithmetic number, because the mean of its divisors is an integer number (973392).

Almost surely, 2^9976407 is an apocalyptic number.

9976407 is a deficient number, since it is larger than the sum of its proper divisors (5597865).

9976407 is a wasteful number, since it uses less digits than its factorization.

9976407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11638.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 9976407 is about 3158.5450764553. The cubic root of 9976407 is about 215.2739036559.

The spelling of 9976407 in words is "nine million, nine hundred seventy-six thousand, four hundred seven".