83745287 has 8 divisors (see below), whose sum is σ = 84851712. Its totient is φ = 82646200.

The previous prime is 83745269. The next prime is 83745307. The reversal of 83745287 is 78254738.

It is a happy number.

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 83745287 - 2⁸ = 83745031 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 (83745227) 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, 23348 + ... + 26694.

It is an arithmetic number, because the mean of its divisors is an integer number (10606464).

Almost surely, 2^83745287 is an apocalyptic number.

83745287 is a deficient number, since it is larger than the sum of its proper divisors (1106425).

83745287 is a wasteful number, since it uses less digits than its factorization.

83745287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669.

The product of its digits is 376320, while the sum is 44.

The square root of 83745287 is about 9151.2451065415. The cubic root of 83745287 is about 437.5087989523.

The spelling of 83745287 in words is "eighty-three million, seven hundred forty-five thousand, two hundred eighty-seven".