75442893 has 4 divisors (see below), whose sum is σ = 100590528. Its totient is φ = 50295260.

The previous prime is 75442883. The next prime is 75442919. The reversal of 75442893 is 39824457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75442893 - 2¹³ = 75434701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75442813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12573813 + ... + 12573818.

It is an arithmetic number, because the mean of its divisors is an integer number (25147632).

Almost surely, 2^75442893 is an apocalyptic number.

It is an amenable number.

75442893 is a deficient number, since it is larger than the sum of its proper divisors (25147635).

75442893 is a wasteful number, since it uses less digits than its factorization.

75442893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25147634.

The product of its digits is 241920, while the sum is 42.

The square root of 75442893 is about 8685.7868382778. The cubic root of 75442893 is about 422.5448160390.

The spelling of 75442893 in words is "seventy-five million, four hundred forty-two thousand, eight hundred ninety-three".