2978031 has 8 divisors (see below), whose sum is σ = 4537984. Its totient is φ = 1701720.

The previous prime is 2978011. The next prime is 2978033. The reversal of 2978031 is 1308792.

It is a happy number.

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

It is not a de Polignac number, because 2978031 - 2⁷ = 2977903 is a prime.

It is a super-2 number, since 2×2978031² = 17737337273922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2978031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70885 + ... + 70926.

It is an arithmetic number, because the mean of its divisors is an integer number (567248).

2^2978031 is an apocalyptic number.

2978031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2978031 is a deficient number, since it is larger than the sum of its proper divisors (1559953).

2978031 is a wasteful number, since it uses less digits than its factorization.

2978031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141821.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2978031 is about 1725.6972503890. The cubic root of 2978031 is about 143.8720410356.

The spelling of 2978031 in words is "two million, nine hundred seventy-eight thousand, thirty-one".