87053783 has 4 divisors (see below), whose sum is σ = 89177088. Its totient is φ = 84930480.

The previous prime is 87053777. The next prime is 87053807. The reversal of 87053783 is 38735078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87053783 is a prime.

It is a super-2 number, since 2×87053783² = 15156722269222178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2123263 = 87053783 / (8 + 7 + 0 + 5 + 3 + 7 + 8 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87053783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87053713) 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, 1061591 + ... + 1061672.

It is an arithmetic number, because the mean of its divisors is an integer number (22294272).

Almost surely, 2^87053783 is an apocalyptic number.

87053783 is a deficient number, since it is larger than the sum of its proper divisors (2123305).

87053783 is a wasteful number, since it uses less digits than its factorization.

87053783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123304.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 87053783 is about 9330.2616790742. The cubic root of 87053783 is about 443.1960518026.

The spelling of 87053783 in words is "eighty-seven million, fifty-three thousand, seven hundred eighty-three".