99978035 has 8 divisors (see below), whose sum is σ = 120098160. Its totient is φ = 79899424.

The previous prime is 99978029. The next prime is 99978041. The reversal of 99978035 is 53087999.

It is an interprime number because it is at equal distance from previous prime (99978029) and next prime (99978041).

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

It is a cyclic number.

It is not a de Polignac number, because 99978035 - 2¹⁶ = 99912499 is a prime.

It is a super-2 number, since 2×99978035² = 19991214964922450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4805 + ... + 14934.

It is an arithmetic number, because the mean of its divisors is an integer number (15012270).

Almost surely, 2^99978035 is an apocalyptic number.

99978035 is a deficient number, since it is larger than the sum of its proper divisors (20120125).

99978035 is a wasteful number, since it uses less digits than its factorization.

99978035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20757.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 99978035 is about 9998.9016896857. The cubic root of 99978035 is about 464.1248967065.

The spelling of 99978035 in words is "ninety-nine million, nine hundred seventy-eight thousand, thirty-five".