99415 has 8 divisors (see below), whose sum is σ = 121680. Its totient is φ = 77952.
The previous prime is 99409. The next prime is 99431. The reversal of 99415 is 51499.
99415 = T26 + T27 + ... + T84.
99415 = 1392 + 1402 + ... + 1432.
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 99415 - 211 = 97367 is a prime.
It is an Ulam number.
It is a congruent number.
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, 127 + ... + 463.
It is an arithmetic number, because the mean of its divisors is an integer number (15210).
299415 is an apocalyptic number.
99415 is a deficient number, since it is larger than the sum of its proper divisors (22265).
99415 is a wasteful number, since it uses less digits than its factorization.
99415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 401.
The product of its digits is 1620, while the sum is 28.
The square root of 99415 is about 315.3014430668. The cubic root of 99415 is about 46.3252002816.
Multiplying 99415 by its sum of digits (28), we get a triangular number (2783620 = T2359).
The spelling of 99415 in words is "ninety-nine thousand, four hundred fifteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •