75497828 has 18 divisors (see below), whose sum is σ = 153692406. Its totient is φ = 32356128.

The previous prime is 75497827. The next prime is 75497837. The reversal of 75497828 is 82879457.

It can be written as a sum of positive squares in only one way, i.e., 43665664 + 31832164 = 6608^2 + 5642^2 .

It is not an unprimeable number, because it can be changed into a prime (75497827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192401 + ... + 192792.

It is an arithmetic number, because the mean of its divisors is an integer number (8538467).

Almost surely, 2^75497828 is an apocalyptic number.

It is an amenable number.

75497828 is an abundant number, since it is smaller than the sum of its proper divisors (78194578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75497828 is a wasteful number, since it uses less digits than its factorization.

75497828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385211 (or 385202 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 75497828 is about 8688.9486130371. The cubic root of 75497828 is about 422.6473521721.

The spelling of 75497828 in words is "seventy-five million, four hundred ninety-seven thousand, eight hundred twenty-eight".