2147790 has 16 divisors (see below), whose sum is σ = 5154768. Its totient is φ = 572736.

The previous prime is 2147771. The next prime is 2147801. The reversal of 2147790 is 977412.

It is a super-2 number, since 2×2147790² = 9226003768200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 71593 = 2147790 / (2 + 1 + 4 + 7 + 7 + 9 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35767 + ... + 35826.

It is an arithmetic number, because the mean of its divisors is an integer number (322173).

2^2147790 is an apocalyptic number.

2147790 is an abundant number, since it is smaller than the sum of its proper divisors (3006978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2147790 is a wasteful number, since it uses less digits than its factorization.

2147790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71603.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 2147790 is about 1465.5340323582. The cubic root of 2147790 is about 129.0220501938.

The spelling of 2147790 in words is "two million, one hundred forty-seven thousand, seven hundred ninety".