934086521 has 4 divisors (see below), whose sum is σ = 936130932. Its totient is φ = 932042112.

The previous prime is 934086487. The next prime is 934086523. The reversal of 934086521 is 125680439.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125680439 = 17 ⋅7392967.

It can be written as a sum of positive squares in 2 ways, for example, as 662496121 + 271590400 = 25739^2 + 16480^2 .

It is a cyclic number.

It is not a de Polignac number, because 934086521 - 2⁶ = 934086457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (934086523) 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, 1021520 + ... + 1022433.

It is an arithmetic number, because the mean of its divisors is an integer number (234032733).

Almost surely, 2^934086521 is an apocalyptic number.

It is an amenable number.

934086521 is a deficient number, since it is larger than the sum of its proper divisors (2044411).

934086521 is a wasteful number, since it uses less digits than its factorization.

934086521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044410.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 934086521 is about 30562.8290738930. The cubic root of 934086521 is about 977.5276151651.

The spelling of 934086521 in words is "nine hundred thirty-four million, eighty-six thousand, five hundred twenty-one".