78949162 has 4 divisors (see below), whose sum is σ = 118423746. Its totient is φ = 39474580.

The previous prime is 78949153. The next prime is 78949183. The reversal of 78949162 is 26194987.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68906601 + 10042561 = 8301^2 + 3169^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19737289 + ... + 19737292.

Almost surely, 2^78949162 is an apocalyptic number.

78949162 is a deficient number, since it is larger than the sum of its proper divisors (39474584).

78949162 is a wasteful number, since it uses less digits than its factorization.

78949162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39474583.

The product of its digits is 217728, while the sum is 46.

The square root of 78949162 is about 8885.3340961384. The cubic root of 78949162 is about 428.9919817092.

The spelling of 78949162 in words is "seventy-eight million, nine hundred forty-nine thousand, one hundred sixty-two".