2930978 has 16 divisors (see below), whose sum is σ = 4669920. Its totient is φ = 1375776.

The previous prime is 2930969. The next prime is 2930999. The reversal of 2930978 is 8790392.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 4925 + ... + 5487.

It is an arithmetic number, because the mean of its divisors is an integer number (291870).

2^2930978 is an apocalyptic number.

2930978 is a deficient number, since it is larger than the sum of its proper divisors (1738942).

2930978 is a wasteful number, since it uses less digits than its factorization.

2930978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2930978 is about 1712.0099298777. The cubic root of 2930978 is about 143.1102870659.

The spelling of 2930978 in words is "two million, nine hundred thirty thousand, nine hundred seventy-eight".