78899383 has 8 divisors (see below), whose sum is σ = 79463088. Its totient is φ = 78338304.

The previous prime is 78899369. The next prime is 78899393. The reversal of 78899383 is 38399887.

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

It is a cyclic number.

It is not a de Polignac number, because 78899383 - 2¹³ = 78891191 is a prime.

It is a super-2 number, since 2×78899383² = 12450225275561378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78899393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139860 + ... + 140422.

It is an arithmetic number, because the mean of its divisors is an integer number (9932886).

Almost surely, 2^78899383 is an apocalyptic number.

78899383 is a deficient number, since it is larger than the sum of its proper divisors (563705).

78899383 is a wasteful number, since it uses less digits than its factorization.

78899383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313.

The product of its digits is 2612736, while the sum is 55.

The square root of 78899383 is about 8882.5324654628. The cubic root of 78899383 is about 428.9018001245.

The spelling of 78899383 in words is "seventy-eight million, eight hundred ninety-nine thousand, three hundred eighty-three".