30889797 has 8 divisors (see below), whose sum is σ = 41396256. Its totient is φ = 20488272.

The previous prime is 30889777. The next prime is 30889819. The reversal of 30889797 is 79798803.

It is a happy number.

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

It is not a de Polignac number, because 30889797 - 2⁸ = 30889541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30889777) 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, 25543 + ... + 26724.

It is an arithmetic number, because the mean of its divisors is an integer number (5174532).

Almost surely, 2^30889797 is an apocalyptic number.

It is an amenable number.

30889797 is a deficient number, since it is larger than the sum of its proper divisors (10506459).

30889797 is a wasteful number, since it uses less digits than its factorization.

30889797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52467.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 30889797 is about 5557.8590302382. The cubic root of 30889797 is about 313.7653764097.

The spelling of 30889797 in words is "thirty million, eight hundred eighty-nine thousand, seven hundred ninety-seven".