90698401 has 8 divisors (see below), whose sum is σ = 91787904. Its totient is φ = 89613120.

The previous prime is 90698389. The next prime is 90698431. The reversal of 90698401 is 10489609.

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

It is a 3-Lehmer number, since φ(90698401) divides (90698401-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 90698401 - 2⁹ = 90697889 is a prime.

It is a deceptive number, since it divides R_90698400.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90698431) 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, 65961 + ... + 67321.

It is an arithmetic number, because the mean of its divisors is an integer number (11473488).

It is a Poulet number, since it divides 2^90698400-1.

Almost surely, 2^90698401 is an apocalyptic number.

It is an amenable number.

90698401 is a deficient number, since it is larger than the sum of its proper divisors (1089503).

90698401 is a wasteful number, since it uses less digits than its factorization.

90698401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 90698401 is about 9523.5708114131. The cubic root of 90698401 is about 449.2966807566.

The spelling of 90698401 in words is "ninety million, six hundred ninety-eight thousand, four hundred one".