97800053 has 16 divisors (see below), whose sum is σ = 107457840. Its totient is φ = 88467456.

The previous prime is 97800041. The next prime is 97800067. The reversal of 97800053 is 35000879.

It can be written as a sum of positive squares in 8 ways, for example, as 33431524 + 64368529 = 5782^2 + 8023^2 .

It is a cyclic number.

It is not a de Polignac number, because 97800053 - 2⁴ = 97800037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97799992 and 97800019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97800013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158201 + ... + 158817.

It is an arithmetic number, because the mean of its divisors is an integer number (6716115).

Almost surely, 2^97800053 is an apocalyptic number.

It is an amenable number.

97800053 is a deficient number, since it is larger than the sum of its proper divisors (9657787).

97800053 is a wasteful number, since it uses less digits than its factorization.

97800053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 97800053 is about 9889.3909317005. The cubic root of 97800053 is about 460.7298637110.

The spelling of 97800053 in words is "ninety-seven million, eight hundred thousand, fifty-three".