83740478 has 8 divisors (see below), whose sum is σ = 125683272. Its totient is φ = 41846056.

The previous prime is 83740471. The next prime is 83740483. The reversal of 83740478 is 87404738.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83740471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7400 + ... + 14907.

It is an arithmetic number, because the mean of its divisors is an integer number (15710409).

Almost surely, 2^83740478 is an apocalyptic number.

83740478 is a deficient number, since it is larger than the sum of its proper divisors (41942794).

83740478 is a wasteful number, since it uses less digits than its factorization.

83740478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24186.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 83740478 is about 9150.9823516385. The cubic root of 83740478 is about 437.5004242717.

The spelling of 83740478 in words is "eighty-three million, seven hundred forty thousand, four hundred seventy-eight".