3451978 has 16 divisors (see below), whose sum is σ = 5463936. Its totient is φ = 1632400.

The previous prime is 3451967. The next prime is 3451991. The reversal of 3451978 is 8791543.

It is a super-2 number, since 2×3451978² = 23832304224968, which contains 22 as substring.

It is an Ulam 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, 4275 + ... + 5017.

It is an arithmetic number, because the mean of its divisors is an integer number (341496).

Almost surely, 2^3451978 is an apocalyptic number.

3451978 is a deficient number, since it is larger than the sum of its proper divisors (2011958).

3451978 is a wasteful number, since it uses less digits than its factorization.

3451978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its digits is 30240, while the sum is 37.

The square root of 3451978 is about 1857.9499455045. The cubic root of 3451978 is about 151.1318527292.

The spelling of 3451978 in words is "three million, four hundred fifty-one thousand, nine hundred seventy-eight".