97894831 has 4 divisors (see below), whose sum is σ = 102151152. Its totient is φ = 93638512.

The previous prime is 97894829. The next prime is 97894873. The reversal of 97894831 is 13849879.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13849879 = 19 ⋅728941.

It is a cyclic number.

It is not a de Polignac number, because 97894831 - 2¹ = 97894829 is a prime.

It is a super-2 number, since 2×97894831² = 19166795873037122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97864831) 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, 2128126 + ... + 2128171.

It is an arithmetic number, because the mean of its divisors is an integer number (25537788).

Almost surely, 2^97894831 is an apocalyptic number.

97894831 is a deficient number, since it is larger than the sum of its proper divisors (4256321).

97894831 is a wasteful number, since it uses less digits than its factorization.

97894831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256320.

The product of its digits is 435456, while the sum is 49.

The square root of 97894831 is about 9894.1816740951. The cubic root of 97894831 is about 460.8786467139.

The spelling of 97894831 in words is "ninety-seven million, eight hundred ninety-four thousand, eight hundred thirty-one".