83748887 has 4 divisors (see below), whose sum is σ = 86450496. Its totient is φ = 81047280.

The previous prime is 83748883. The next prime is 83748923. The reversal of 83748887 is 78884738.

It is a happy number.

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 83748887 - 2² = 83748883 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 (83748883) 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, 1350758 + ... + 1350819.

It is an arithmetic number, because the mean of its divisors is an integer number (21612624).

Almost surely, 2^83748887 is an apocalyptic number.

83748887 is a deficient number, since it is larger than the sum of its proper divisors (2701609).

83748887 is a wasteful number, since it uses less digits than its factorization.

83748887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701608.

The product of its digits is 2408448, while the sum is 53.

The square root of 83748887 is about 9151.4417989735. The cubic root of 83748887 is about 437.5150679980.

The spelling of 83748887 in words is "eighty-three million, seven hundred forty-eight thousand, eight hundred eighty-seven".