75439814 has 4 divisors (see below), whose sum is σ = 113159724. Its totient is φ = 37719906.

The previous prime is 75439813. The next prime is 75439849. The reversal of 75439814 is 41893457.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75439813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18859952 + ... + 18859955.

It is an arithmetic number, because the mean of its divisors is an integer number (28289931).

Almost surely, 2^75439814 is an apocalyptic number.

75439814 is a deficient number, since it is larger than the sum of its proper divisors (37719910).

75439814 is a wasteful number, since it uses less digits than its factorization.

75439814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37719909.

The product of its digits is 120960, while the sum is 41.

The square root of 75439814 is about 8685.6095928841. The cubic root of 75439814 is about 422.5390676151.

The spelling of 75439814 in words is "seventy-five million, four hundred thirty-nine thousand, eight hundred fourteen".