97864378 has 8 divisors (see below), whose sum is σ = 147000672. Its totient is φ = 48864156.

The previous prime is 97864373. The next prime is 97864391. The reversal of 97864378 is 87346879.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (97864373) 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, 32200 + ... + 35107.

It is an arithmetic number, because the mean of its divisors is an integer number (18375084).

Almost surely, 2^97864378 is an apocalyptic number.

97864378 is a deficient number, since it is larger than the sum of its proper divisors (49136294).

97864378 is a wasteful number, since it uses less digits than its factorization.

97864378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68036.

The product of its digits is 2032128, while the sum is 52.

The square root of 97864378 is about 9892.6426196442. The cubic root of 97864378 is about 460.8308519091.

It can be divided in two parts, 978 and 64378, that added together give a palindrome (65356).

The spelling of 97864378 in words is "ninety-seven million, eight hundred sixty-four thousand, three hundred seventy-eight".