61239478 has 8 divisors (see below), whose sum is σ = 95853168. Its totient is φ = 29288424.

The previous prime is 61239469. The next prime is 61239511. The reversal of 61239478 is 87493216.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61239478.

It is a congruent number.

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, 665601 + ... + 665692.

It is an arithmetic number, because the mean of its divisors is an integer number (11981646).

Almost surely, 2^61239478 is an apocalyptic number.

61239478 is a deficient number, since it is larger than the sum of its proper divisors (34613690).

61239478 is a wasteful number, since it uses less digits than its factorization.

61239478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331318.

The product of its digits is 72576, while the sum is 40.

The square root of 61239478 is about 7825.5656664550. The cubic root of 61239478 is about 394.1641847098.

The spelling of 61239478 in words is "sixty-one million, two hundred thirty-nine thousand, four hundred seventy-eight".