78434962 has 4 divisors (see below), whose sum is σ = 117652446. Its totient is φ = 39217480.

The previous prime is 78434947. The next prime is 78434969. The reversal of 78434962 is 26943487.

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., 71927361 + 6507601 = 8481^2 + 2551^2 .

It is not an unprimeable number, because it can be changed into a prime (78434969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19608739 + ... + 19608742.

Almost surely, 2^78434962 is an apocalyptic number.

78434962 is a deficient number, since it is larger than the sum of its proper divisors (39217484).

78434962 is a wasteful number, since it uses less digits than its factorization.

78434962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39217483.

The product of its digits is 290304, while the sum is 43.

The square root of 78434962 is about 8856.3515061226. The cubic root of 78434962 is about 428.0586033534.

The spelling of 78434962 in words is "seventy-eight million, four hundred thirty-four thousand, nine hundred sixty-two".