3177989 has 4 divisors (see below), whose sum is σ = 3201324. Its totient is φ = 3154656.

The previous prime is 3177971. The next prime is 3178003. The reversal of 3177989 is 9897713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9897713 = 7 ⋅1413959.

It can be written as a sum of positive squares in 2 ways, for example, as 722500 + 2455489 = 850^2 + 1567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3177989 is a prime.

It is a super-2 number, since 2×3177989² = 20199228168242, 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 (3177919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11462 + ... + 11735.

It is an arithmetic number, because the mean of its divisors is an integer number (800331).

Almost surely, 2^3177989 is an apocalyptic number.

It is an amenable number.

3177989 is a deficient number, since it is larger than the sum of its proper divisors (23335).

3177989 is a wasteful number, since it uses less digits than its factorization.

3177989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23334.

The product of its digits is 95256, while the sum is 44.

The square root of 3177989 is about 1782.6915044393. The cubic root of 3177989 is about 147.0226105563.

The spelling of 3177989 in words is "three million, one hundred seventy-seven thousand, nine hundred eighty-nine".