102772806 has 8 divisors (see below), whose sum is σ = 205545624. Its totient is φ = 34257600.

The previous prime is 102772801. The next prime is 102772807. The reversal of 102772806 is 608277201.

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

102772806 is an admirable number.

It is a super-2 number, since 2×102772806² = 21124499306227272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102772801) 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, 8564395 + ... + 8564406.

It is an arithmetic number, because the mean of its divisors is an integer number (25693203).

Almost surely, 2^102772806 is an apocalyptic number.

102772806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

102772806 is a wasteful number, since it uses less digits than its factorization.

102772806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17128806.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 102772806 is about 10137.6923409620. The cubic root of 102772806 is about 468.4099064128.

The spelling of 102772806 in words is "one hundred two million, seven hundred seventy-two thousand, eight hundred six".