97677819 has 10 divisors (see below), whose sum is σ = 145913900. Its totient is φ = 65118492.

The previous prime is 97677793. The next prime is 97677821. The reversal of 97677819 is 91877679.

It is not a de Polignac number, because 97677819 - 2⁵ = 97677787 is a prime.

It is a super-2 number, since 2×97677819² = 19081912649193522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97677319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 602869 + ... + 603030.

It is an arithmetic number, because the mean of its divisors is an integer number (14591390).

Almost surely, 2^97677819 is an apocalyptic number.

97677819 is a deficient number, since it is larger than the sum of its proper divisors (48236081).

97677819 is a wasteful number, since it uses less digits than its factorization.

97677819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205911 (or 1205902 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 97677819 is about 9883.2089424437. The cubic root of 97677819 is about 460.5378381412.

The spelling of 97677819 in words is "ninety-seven million, six hundred seventy-seven thousand, eight hundred nineteen".