2972890 has 8 divisors (see below), whose sum is σ = 5351220. Its totient is φ = 1189152.

The previous prime is 2972887. The next prime is 2972897. The reversal of 2972890 is 982792.

It can be written as a sum of positive squares in 2 ways, for example, as 2927521 + 45369 = 1711^2 + 213^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2972897) 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, 148635 + ... + 148654.

2^2972890 is an apocalyptic number.

2972890 is a deficient number, since it is larger than the sum of its proper divisors (2378330).

2972890 is a wasteful number, since it uses less digits than its factorization.

2972890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297296.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 2972890 is about 1724.2070641312. The cubic root of 2972890 is about 143.7892041779.

The spelling of 2972890 in words is "two million, nine hundred seventy-two thousand, eight hundred ninety".