10016391 has 32 divisors (see below), whose sum is σ = 16828416. Its totient is φ = 5148000.

The previous prime is 10016387. The next prime is 10016407. The reversal of 10016391 is 19361001.

It is a happy number.

10016391 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10016391 - 2² = 10016387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

10016391 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10016351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30096 + ... + 30426.

It is an arithmetic number, because the mean of its divisors is an integer number (525888).

Almost surely, 2^10016391 is an apocalyptic number.

10016391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10016391 is a deficient number, since it is larger than the sum of its proper divisors (6812025).

10016391 is a wasteful number, since it uses less digits than its factorization.

10016391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 10016391 is about 3164.8682437030. The cubic root of 10016391 is about 215.5611158783.

Adding to 10016391 its reverse (19361001), we get a palindrome (29377392).

The spelling of 10016391 in words is "ten million, sixteen thousand, three hundred ninety-one".