4858978 has 4 divisors (see below), whose sum is σ = 7288470. Its totient is φ = 2429488.

The previous prime is 4858967. The next prime is 4858981. The reversal of 4858978 is 8798584.

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., 4809249 + 49729 = 2193^2 + 223^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1214743 + ... + 1214746.

Almost surely, 2^4858978 is an apocalyptic number.

4858978 is a deficient number, since it is larger than the sum of its proper divisors (2429492).

4858978 is a wasteful number, since it uses less digits than its factorization.

4858978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429491.

The product of its digits is 645120, while the sum is 49.

The square root of 4858978 is about 2204.3089620105. The cubic root of 4858978 is about 169.3746110474.

The spelling of 4858978 in words is "four million, eight hundred fifty-eight thousand, nine hundred seventy-eight".