2391772 has 12 divisors (see below), whose sum is σ = 4243456. Its totient is φ = 1179360.

The previous prime is 2391769. The next prime is 2391799. The reversal of 2391772 is 2771932.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3804 + ... + 4387.

2^2391772 is an apocalyptic number.

It is an amenable number.

2391772 is a deficient number, since it is larger than the sum of its proper divisors (1851684).

2391772 is a wasteful number, since it uses less digits than its factorization.

2391772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8268 (or 8266 counting only the distinct ones).

The product of its digits is 5292, while the sum is 31.

The square root of 2391772 is about 1546.5354829424. The cubic root of 2391772 is about 133.7334122148.

The spelling of 2391772 in words is "two million, three hundred ninety-one thousand, seven hundred seventy-two".