99670429 has 8 divisors (see below), whose sum is σ = 101122560. Its totient is φ = 98223216.

The previous prime is 99670397. The next prime is 99670451. The reversal of 99670429 is 92407699.

99670429 = T₈₁₅₀ + T₈₁₅₁ + T₈₁₅₂.

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 99670429 - 2⁵ = 99670397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99670469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62172 + ... + 63754.

It is an arithmetic number, because the mean of its divisors is an integer number (12640320).

Almost surely, 2^99670429 is an apocalyptic number.

99670429 is the 8152-nd centered triangular number.

It is an amenable number.

99670429 is a deficient number, since it is larger than the sum of its proper divisors (1452131).

99670429 is a wasteful number, since it uses less digits than its factorization.

99670429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 99670429 is about 9983.5078504502. The cubic root of 99670429 is about 463.6484111359.

The spelling of 99670429 in words is "ninety-nine million, six hundred seventy thousand, four hundred twenty-nine".