78463250 has 16 divisors (see below), whose sum is σ = 146883672. Its totient is φ = 31385200.

The previous prime is 78463249. The next prime is 78463271. The reversal of 78463250 is 5236487.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4313929 + 74149321 = 2077^2 + 8611^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78463250.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156677 + ... + 157176.

Almost surely, 2^78463250 is an apocalyptic number.

78463250 is a deficient number, since it is larger than the sum of its proper divisors (68420422).

78463250 is a wasteful number, since it uses less digits than its factorization.

78463250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313870 (or 313860 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 78463250 is about 8857.9484080683. The cubic root of 78463250 is about 428.1100577306.

The spelling of 78463250 in words is "seventy-eight million, four hundred sixty-three thousand, two hundred fifty".