78894250 has 64 divisors (see below), whose sum is σ = 155675520. Its totient is φ = 29904000.

The previous prime is 78894223. The next prime is 78894253. The reversal of 78894250 is 5249887.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 78894197 and 78894206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78894253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440661 + ... + 440839.

It is an arithmetic number, because the mean of its divisors is an integer number (2432430).

Almost surely, 2^78894250 is an apocalyptic number.

78894250 is a deficient number, since it is larger than the sum of its proper divisors (76781270).

78894250 is a wasteful number, since it uses less digits than its factorization.

78894250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 78894250 is about 8882.2435228944. The cubic root of 78894250 is about 428.8924988237.

The spelling of 78894250 in words is "seventy-eight million, eight hundred ninety-four thousand, two hundred fifty".