73869782 has 16 divisors (see below), whose sum is σ = 129723552. Its totient is φ = 30886080.

The previous prime is 73869781. The next prime is 73869787. The reversal of 73869782 is 28796837.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 73869782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73869781) 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, 63773 + ... + 64920.

It is an arithmetic number, because the mean of its divisors is an integer number (8107722).

Almost surely, 2^73869782 is an apocalyptic number.

73869782 is a deficient number, since it is larger than the sum of its proper divisors (55853770).

73869782 is a wasteful number, since it uses less digits than its factorization.

73869782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128743.

The product of its digits is 1016064, while the sum is 50.

The square root of 73869782 is about 8594.7531669036. The cubic root of 73869782 is about 419.5872399907.

The spelling of 73869782 in words is "seventy-three million, eight hundred sixty-nine thousand, seven hundred eighty-two".