10421907 has 8 divisors (see below), whose sum is σ = 14026176. Its totient is φ = 6882792.

The previous prime is 10421903. The next prime is 10421909. The reversal of 10421907 is 70912401.

10421907 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10421907 - 2² = 10421903 is a prime.

It is a super-2 number, since 2×10421907² = 217232291033298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10421903) 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, 15913 + ... + 16554.

It is an arithmetic number, because the mean of its divisors is an integer number (1753272).

Almost surely, 2^10421907 is an apocalyptic number.

10421907 is a deficient number, since it is larger than the sum of its proper divisors (3604269).

10421907 is a wasteful number, since it uses less digits than its factorization.

10421907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32577.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 10421907 is about 3228.2978487122. The cubic root of 10421907 is about 218.4317328671.

The spelling of 10421907 in words is "ten million, four hundred twenty-one thousand, nine hundred seven".