100782473 has 6 divisors (see below), whose sum is σ = 110777562. Its totient is φ = 91620320.

The previous prime is 100782463. The next prime is 100782491. The reversal of 100782473 is 374287001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 96275344 + 4507129 = 9812^2 + 2123^2 .

It is not a de Polignac number, because 100782473 - 2⁸ = 100782217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100782463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 416336 + ... + 416577.

It is an arithmetic number, because the mean of its divisors is an integer number (18462927).

Almost surely, 2^100782473 is an apocalyptic number.

It is an amenable number.

100782473 is a deficient number, since it is larger than the sum of its proper divisors (9995089).

100782473 is an equidigital number, since it uses as much as digits as its factorization.

100782473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832935 (or 832924 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 100782473 is about 10039.0474149692. The cubic root of 100782473 is about 465.3663786878.

The spelling of 100782473 in words is "one hundred million, seven hundred eighty-two thousand, four hundred seventy-three".