91829401 has 8 divisors (see below), whose sum is σ = 93349224. Its totient is φ = 90316800.

The previous prime is 91829333. The next prime is 91829407. The reversal of 91829401 is 10492819.

It can be written as a sum of positive squares in 4 ways, for example, as 76108176 + 15721225 = 8724^2 + 3965^2 .

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 91829401 - 2¹⁷ = 91698329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91829407) 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, 27705 + ... + 30841.

It is an arithmetic number, because the mean of its divisors is an integer number (11668653).

Almost surely, 2^91829401 is an apocalyptic number.

It is an amenable number.

91829401 is a deficient number, since it is larger than the sum of its proper divisors (1519823).

91829401 is a wasteful number, since it uses less digits than its factorization.

91829401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 91829401 is about 9582.7658324724. The cubic root of 91829401 is about 451.1565328984.

The spelling of 91829401 in words is "ninety-one million, eight hundred twenty-nine thousand, four hundred one".