10215997 has 8 divisors (see below), whose sum is σ = 11800512. Its totient is φ = 8740800.

The previous prime is 10215971. The next prime is 10216013. The reversal of 10215997 is 79951201.

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 10215997 - 2⁷ = 10215869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215797) 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, 27129 + ... + 27502.

It is an arithmetic number, because the mean of its divisors is an integer number (1475064).

Almost surely, 2^10215997 is an apocalyptic number.

10215997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

10215997 is a deficient number, since it is larger than the sum of its proper divisors (1584515).

10215997 is a wasteful number, since it uses less digits than its factorization.

10215997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54659.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 10215997 is about 3196.2473308554. The cubic root of 10215997 is about 216.9836042742.

The spelling of 10215997 in words is "ten million, two hundred fifteen thousand, nine hundred ninety-seven".