528072407 has 8 divisors (see below), whose sum is σ = 531816192. Its totient is φ = 524339200.

The previous prime is 528072373. The next prime is 528072427. The reversal of 528072407 is 704270825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 528072407 - 2⁸ = 528072151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528072427) 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, 115607 + ... + 120087.

It is an arithmetic number, because the mean of its divisors is an integer number (66477024).

Almost surely, 2^528072407 is an apocalyptic number.

528072407 is a deficient number, since it is larger than the sum of its proper divisors (3743785).

528072407 is a wasteful number, since it uses less digits than its factorization.

528072407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 528072407 is about 22979.8260872444. The cubic root of 528072407 is about 808.2849486562.

The spelling of 528072407 in words is "five hundred twenty-eight million, seventy-two thousand, four hundred seven".