2920858 has 4 divisors (see below), whose sum is σ = 4381290. Its totient is φ = 1460428.

The previous prime is 2920837. The next prime is 2920871. The reversal of 2920858 is 8580292.

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

It can be written as a sum of positive squares in only one way, i.e., 1760929 + 1159929 = 1327^2 + 1077^2 .

It is a super-2 number, since 2×2920858² = 17062822912328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730213 + ... + 730216.

2^2920858 is an apocalyptic number.

2920858 is a deficient number, since it is larger than the sum of its proper divisors (1460432).

2920858 is a wasteful number, since it uses less digits than its factorization.

2920858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460431.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2920858 is about 1709.0517838849. The cubic root of 2920858 is about 142.9453880497.

The spelling of 2920858 in words is "two million, nine hundred twenty thousand, eight hundred fifty-eight".