2472391 has 4 divisors (see below), whose sum is σ = 2512984. Its totient is φ = 2431800.

The previous prime is 2472389. The next prime is 2472403. The reversal of 2472391 is 1932742.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2472391 - 2¹ = 2472389 is a prime.

It is a super-2 number, since 2×2472391² = 12225434513762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2472091) by changing a digit.

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, 20205 + ... + 20326.

It is an arithmetic number, because the mean of its divisors is an integer number (628246).

2^2472391 is an apocalyptic number.

2472391 is a deficient number, since it is larger than the sum of its proper divisors (40593).

2472391 is an equidigital number, since it uses as much as digits as its factorization.

2472391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40592.

The product of its digits is 3024, while the sum is 28.

The square root of 2472391 is about 1572.3838589861. The cubic root of 2472391 is about 135.2194145701.

The spelling of 2472391 in words is "two million, four hundred seventy-two thousand, three hundred ninety-one".