78083674 has 4 divisors (see below), whose sum is σ = 117125514. Its totient is φ = 39041836.

The previous prime is 78083671. The next prime is 78083693. The reversal of 78083674 is 47638087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47638087 = 7 ⋅6805441.

It can be written as a sum of positive squares in only one way, i.e., 62520649 + 15563025 = 7907^2 + 3945^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78083674.

It is not an unprimeable number, because it can be changed into a prime (78083671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19520917 + ... + 19520920.

Almost surely, 2^78083674 is an apocalyptic number.

78083674 is a deficient number, since it is larger than the sum of its proper divisors (39041840).

78083674 is a wasteful number, since it uses less digits than its factorization.

78083674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39041839.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 78083674 is about 8836.4967040112. The cubic root of 78083674 is about 427.4185958107.

The spelling of 78083674 in words is "seventy-eight million, eighty-three thousand, six hundred seventy-four".