75678812 has 48 divisors (see below), whose sum is σ = 150764544. Its totient is φ = 32928000.

The previous prime is 75678803. The next prime is 75678817. The reversal of 75678812 is 21887657.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75678817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153887 + ... + 154377.

It is an arithmetic number, because the mean of its divisors is an integer number (3140928).

Almost surely, 2^75678812 is an apocalyptic number.

It is an amenable number.

75678812 is a deficient number, since it is larger than the sum of its proper divisors (75085732).

75678812 is a wasteful number, since it uses less digits than its factorization.

75678812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 648 counting only the distinct ones).

The product of its digits is 188160, while the sum is 44.

The square root of 75678812 is about 8699.3569877319. The cubic root of 75678812 is about 422.9848072086.

The spelling of 75678812 in words is "seventy-five million, six hundred seventy-eight thousand, eight hundred twelve".