90691401 has 8 divisors (see below), whose sum is σ = 122726944. Its totient is φ = 59558400.

The previous prime is 90691373. The next prime is 90691453. The reversal of 90691401 is 10419609.

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

It is not a de Polignac number, because 90691401 - 2⁷ = 90691273 is a prime.

It is a super-3 number, since 3×90691401³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90696401) 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, 225400 + ... + 225801.

It is an arithmetic number, because the mean of its divisors is an integer number (15340868).

Almost surely, 2^90691401 is an apocalyptic number.

It is an amenable number.

90691401 is a deficient number, since it is larger than the sum of its proper divisors (32035543).

90691401 is a wasteful number, since it uses less digits than its factorization.

90691401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451271.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 90691401 is about 9523.2032951103. The cubic root of 90691401 is about 449.2851217227.

The spelling of 90691401 in words is "ninety million, six hundred ninety-one thousand, four hundred one".