9088681421 has 4 divisors (see below), whose sum is σ = 9089200512. Its totient is φ = 9088162332.

The previous prime is 9088681409. The next prime is 9088681429. The reversal of 9088681421 is 1241868809.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9088681421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9088681429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232331 + ... + 268616.

It is an arithmetic number, because the mean of its divisors is an integer number (2272300128).

Almost surely, 2^9088681421 is an apocalyptic number.

It is an amenable number.

9088681421 is a deficient number, since it is larger than the sum of its proper divisors (519091).

9088681421 is a wasteful number, since it uses less digits than its factorization.

9088681421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519090.

The product of its (nonzero) digits is 221184, while the sum is 47.

The square root of 9088681421 is about 95334.5762092642. The cubic root of 9088681421 is about 2086.8935345404.

The spelling of 9088681421 in words is "nine billion, eighty-eight million, six hundred eighty-one thousand, four hundred twenty-one".