97861443 has 4 divisors (see below), whose sum is σ = 130481928. Its totient is φ = 65240960.

The previous prime is 97861427. The next prime is 97861447. The reversal of 97861443 is 34416879.

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

It is a cyclic number.

It is not a de Polignac number, because 97861443 - 2⁴ = 97861427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97861395 and 97861404.

It is not an unprimeable number, because it can be changed into a prime (97861447) 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, 16310238 + ... + 16310243.

It is an arithmetic number, because the mean of its divisors is an integer number (32620482).

Almost surely, 2^97861443 is an apocalyptic number.

97861443 is a deficient number, since it is larger than the sum of its proper divisors (32620485).

97861443 is a wasteful number, since it uses less digits than its factorization.

97861443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32620484.

The product of its digits is 145152, while the sum is 42.

The square root of 97861443 is about 9892.4942759650. The cubic root of 97861443 is about 460.8262450164.

The spelling of 97861443 in words is "ninety-seven million, eight hundred sixty-one thousand, four hundred forty-three".