860978458 has 8 divisors (see below), whose sum is σ = 1347618528. Its totient is φ = 411772284.

The previous prime is 860978441. The next prime is 860978467. The reversal of 860978458 is 854879068.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 860978399 and 860978408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9358416 + ... + 9358507.

It is an arithmetic number, because the mean of its divisors is an integer number (168452316).

Almost surely, 2^860978458 is an apocalyptic number.

860978458 is a deficient number, since it is larger than the sum of its proper divisors (486640070).

860978458 is a wasteful number, since it uses less digits than its factorization.

860978458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18716948.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The square root of 860978458 is about 29342.4344252484. The cubic root of 860978458 is about 951.3290568550.

The spelling of 860978458 in words is "eight hundred sixty million, nine hundred seventy-eight thousand, four hundred fifty-eight".