97676820 has 48 divisors (see below), whose sum is σ = 303885120. Its totient is φ = 26047008.

The previous prime is 97676819. The next prime is 97676863. The reversal of 97676820 is 2867679.

It is a happy number.

It is a super-2 number, since 2×97676820² = 19081522330624800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89902 + ... + 90981.

It is an arithmetic number, because the mean of its divisors is an integer number (6330940).

Almost surely, 2^97676820 is an apocalyptic number.

97676820 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

97676820 is an abundant number, since it is smaller than the sum of its proper divisors (206208300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97676820 is a wasteful number, since it uses less digits than its factorization.

97676820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180901 (or 180893 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 97676820 is about 9883.1584020494. The cubic root of 97676820 is about 460.5362680854.

The spelling of 97676820 in words is "ninety-seven million, six hundred seventy-six thousand, eight hundred twenty".