83274511 has 4 divisors (see below), whose sum is σ = 87657400. Its totient is φ = 78891624.

The previous prime is 83274509. The next prime is 83274539. The reversal of 83274511 is 11547238.

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 83274511 - 2¹ = 83274509 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 (83274571) 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, 2191416 + ... + 2191453.

It is an arithmetic number, because the mean of its divisors is an integer number (21914350).

Almost surely, 2^83274511 is an apocalyptic number.

83274511 is a deficient number, since it is larger than the sum of its proper divisors (4382889).

83274511 is a wasteful number, since it uses less digits than its factorization.

83274511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382888.

The product of its digits is 6720, while the sum is 31.

The square root of 83274511 is about 9125.4868911198. The cubic root of 83274511 is about 436.6874360949.

The spelling of 83274511 in words is "eighty-three million, two hundred seventy-four thousand, five hundred eleven".