82772742 has 16 divisors (see below), whose sum is σ = 178279920. Its totient is φ = 25468512.

The previous prime is 82772707. The next prime is 82772749. The reversal of 82772742 is 24727728.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 82772742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82772749) 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, 530517 + ... + 530672.

It is an arithmetic number, because the mean of its divisors is an integer number (11142495).

Almost surely, 2^82772742 is an apocalyptic number.

82772742 is an abundant number, since it is smaller than the sum of its proper divisors (95507178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82772742 is a wasteful number, since it uses less digits than its factorization.

82772742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061207.

The product of its digits is 87808, while the sum is 39.

The square root of 82772742 is about 9097.9526268276. The cubic root of 82772742 is about 435.8085845784.

The spelling of 82772742 in words is "eighty-two million, seven hundred seventy-two thousand, seven hundred forty-two".