902800061 has 4 divisors (see below), whose sum is σ = 917600124. Its totient is φ = 888000000.

The previous prime is 902800051. The next prime is 902800081. The reversal of 902800061 is 160008209.

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

It can be written as a sum of positive squares in 2 ways, for example, as 193376836 + 709423225 = 13906^2 + 26635^2 .

It is a cyclic number.

It is not a de Polignac number, because 902800061 - 2¹⁴ = 902783677 is a prime.

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 902800061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (902800001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7399940 + ... + 7400061.

It is an arithmetic number, because the mean of its divisors is an integer number (229400031).

Almost surely, 2^902800061 is an apocalyptic number.

It is an amenable number.

902800061 is a deficient number, since it is larger than the sum of its proper divisors (14800063).

902800061 is a wasteful number, since it uses less digits than its factorization.

902800061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14800062.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 902800061 is about 30046.6314418106. The cubic root of 902800061 is about 966.4896180835.

The spelling of 902800061 in words is "nine hundred two million, eight hundred thousand, sixty-one".