99980654 has 8 divisors (see below), whose sum is σ = 152025600. Its totient is φ = 49305456.

The previous prime is 99980653. The next prime is 99980659. The reversal of 99980654 is 45608999.

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

It is a super-2 number, since 2×99980654² = 19992262348535432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99980653) 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 3 ways as a sum of consecutive naturals, for example, 342254 + ... + 342545.

It is an arithmetic number, because the mean of its divisors is an integer number (19003200).

Almost surely, 2^99980654 is an apocalyptic number.

99980654 is a deficient number, since it is larger than the sum of its proper divisors (52044946).

99980654 is a wasteful number, since it uses less digits than its factorization.

99980654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684874.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 99980654 is about 9999.0326532120. The cubic root of 99980654 is about 464.1289493717.

The spelling of 99980654 in words is "ninety-nine million, nine hundred eighty thousand, six hundred fifty-four".