83747427 has 8 divisors (see below), whose sum is σ = 112164864. Its totient is φ = 55580808.

The previous prime is 83747381. The next prime is 83747429. The reversal of 83747427 is 72474738.

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

It is not a de Polignac number, because 83747427 - 2⁸ = 83747171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83747429) 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, 61923 + ... + 63260.

It is an arithmetic number, because the mean of its divisors is an integer number (14020608).

Almost surely, 2^83747427 is an apocalyptic number.

83747427 is a deficient number, since it is larger than the sum of its proper divisors (28417437).

83747427 is a wasteful number, since it uses less digits than its factorization.

83747427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125409.

The product of its digits is 263424, while the sum is 42.

The square root of 83747427 is about 9151.3620297746. The cubic root of 83747427 is about 437.5125255734.

The spelling of 83747427 in words is "eighty-three million, seven hundred forty-seven thousand, four hundred twenty-seven".