4961978 has 16 divisors (see below), whose sum is σ = 8688384. Its totient is φ = 2081040.

The previous prime is 4961969. The next prime is 4962037. The reversal of 4961978 is 8791694.

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, 3113 + ... + 4428.

It is an arithmetic number, because the mean of its divisors is an integer number (543024).

Almost surely, 2^4961978 is an apocalyptic number.

4961978 is a deficient number, since it is larger than the sum of its proper divisors (3726406).

4961978 is a wasteful number, since it uses less digits than its factorization.

4961978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7597.

The product of its digits is 108864, while the sum is 44.

The square root of 4961978 is about 2227.5497749770. The cubic root of 4961978 is about 170.5630466038.

The spelling of 4961978 in words is "four million, nine hundred sixty-one thousand, nine hundred seventy-eight".