98405431 has 8 divisors (see below), whose sum is σ = 103839840. Its totient is φ = 93067392.

The previous prime is 98405407. The next prime is 98405441. The reversal of 98405431 is 13450489.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98405431 is a prime.

It is a super-2 number, since 2×98405431² = 19367257700591522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98405441) 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, 21990 + ... + 26083.

It is an arithmetic number, because the mean of its divisors is an integer number (12979980).

Almost surely, 2^98405431 is an apocalyptic number.

98405431 is a deficient number, since it is larger than the sum of its proper divisors (5434409).

98405431 is a wasteful number, since it uses less digits than its factorization.

98405431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48185.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 98405431 is about 9919.9511591540. The cubic root of 98405431 is about 461.6785414599.

The spelling of 98405431 in words is "ninety-eight million, four hundred five thousand, four hundred thirty-one".