9719901 has 24 divisors (see below), whose sum is σ = 14676480. Its totient is φ = 6191136.

The previous prime is 9719893. The next prime is 9719909. The reversal of 9719901 is 1099179.

It is an interprime number because it is at equal distance from previous prime (9719893) and next prime (9719909).

It is not a de Polignac number, because 9719901 - 2³ = 9719893 is a prime.

It is a Curzon number.

9719901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9719909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43476 + ... + 43698.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

Almost surely, 2^9719901 is an apocalyptic number.

It is an amenable number.

9719901 is a deficient number, since it is larger than the sum of its proper divisors (4956579).

9719901 is a wasteful number, since it uses less digits than its factorization.

9719901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 36.

The square root of 9719901 is about 3117.6755764511. The cubic root of 9719901 is about 213.4128737146.

The spelling of 9719901 in words is "nine million, seven hundred nineteen thousand, nine hundred one".