97861847 has 4 divisors (see below), whose sum is σ = 98609016. Its totient is φ = 97114680.

The previous prime is 97861831. The next prime is 97861853. The reversal of 97861847 is 74816879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74816879 = 641 ⋅116719.

It is a cyclic number.

It is not a de Polignac number, because 97861847 - 2⁴ = 97861831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97861795 and 97861804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97861807) 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, 373388 + ... + 373649.

It is an arithmetic number, because the mean of its divisors is an integer number (24652254).

Almost surely, 2^97861847 is an apocalyptic number.

97861847 is a deficient number, since it is larger than the sum of its proper divisors (747169).

97861847 is a wasteful number, since it uses less digits than its factorization.

97861847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747168.

The product of its digits is 677376, while the sum is 50.

The square root of 97861847 is about 9892.5146954655. The cubic root of 97861847 is about 460.8268791563.

The spelling of 97861847 in words is "ninety-seven million, eight hundred sixty-one thousand, eight hundred forty-seven".