78083349 has 16 divisors (see below), whose sum is σ = 106286400. Its totient is φ = 50979456.

The previous prime is 78083347. The next prime is 78083371. The reversal of 78083349 is 94338087.

It is not a de Polignac number, because 78083349 - 2¹ = 78083347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78083349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78083347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27762 + ... + 30444.

It is an arithmetic number, because the mean of its divisors is an integer number (6642900).

Almost surely, 2^78083349 is an apocalyptic number.

It is an amenable number.

78083349 is a deficient number, since it is larger than the sum of its proper divisors (28203051).

78083349 is a wasteful number, since it uses less digits than its factorization.

78083349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 78083349 is about 8836.4783143513. The cubic root of 78083349 is about 427.4180028090.

The spelling of 78083349 in words is "seventy-eight million, eighty-three thousand, three hundred forty-nine".