97803857 has 4 divisors (see below), whose sum is σ = 97962480. Its totient is φ = 97645236.

The previous prime is 97803833. The next prime is 97803859. The reversal of 97803857 is 75830879.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97803857 - 2⁶ = 97803793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97803859) 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, 78383 + ... + 79620.

It is an arithmetic number, because the mean of its divisors is an integer number (24490620).

Almost surely, 2^97803857 is an apocalyptic number.

It is an amenable number.

97803857 is a deficient number, since it is larger than the sum of its proper divisors (158623).

97803857 is a wasteful number, since it uses less digits than its factorization.

97803857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158622.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 97803857 is about 9889.5832571449. The cubic root of 97803857 is about 460.7358371014.

The spelling of 97803857 in words is "ninety-seven million, eight hundred three thousand, eight hundred fifty-seven".