75000407 has 4 divisors (see below), whose sum is σ = 75245016. Its totient is φ = 74755800.

The previous prime is 75000349. The next prime is 75000421. The reversal of 75000407 is 70400057.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 75000407 - 2¹⁰ = 74999383 is a prime.

It is a super-2 number, since 2×75000407² = 11250122100331298, which contains 22 as substring.

It is a Duffinian number.

75000407 is a modest number, since divided by 407 gives 75 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75000437) 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, 121844 + ... + 122457.

It is an arithmetic number, because the mean of its divisors is an integer number (18811254).

Almost surely, 2^75000407 is an apocalyptic number.

75000407 is a deficient number, since it is larger than the sum of its proper divisors (244609).

75000407 is a wasteful number, since it uses less digits than its factorization.

75000407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244608.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 75000407 is about 8660.2775359685. The cubic root of 75000407 is about 421.7170954875.

The spelling of 75000407 in words is "seventy-five million, four hundred seven", and thus it is an aban number.