75497812 has 24 divisors (see below), whose sum is σ = 142520616. Its totient is φ = 34787328.

The previous prime is 75497801. The next prime is 75497819. The reversal of 75497812 is 21879457.

It can be written as a sum of positive squares in 4 ways, for example, as 1089936 + 74407876 = 1044^2 + 8626^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75497819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61428 + ... + 62644.

It is an arithmetic number, because the mean of its divisors is an integer number (5938359).

Almost surely, 2^75497812 is an apocalyptic number.

It is an amenable number.

75497812 is a deficient number, since it is larger than the sum of its proper divisors (67022804).

75497812 is a wasteful number, since it uses less digits than its factorization.

75497812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427 (or 2425 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 75497812 is about 8688.9476923273. The cubic root of 75497812 is about 422.6473223153.

The spelling of 75497812 in words is "seventy-five million, four hundred ninety-seven thousand, eight hundred twelve".