106896421 has 4 divisors (see below), whose sum is σ = 107665600. Its totient is φ = 106127244.

The previous prime is 106896371. The next prime is 106896437. The reversal of 106896421 is 124698601.

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, and also an emirpimes, since its reverse is a distinct semiprime: 124698601 = 6491 ⋅19211.

It is a cyclic number.

It is not a de Polignac number, because 106896421 - 2⁹ = 106895909 is a prime.

It is a super-2 number, since 2×106896421² = 22853689645218482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106896121) 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, 384381 + ... + 384658.

It is an arithmetic number, because the mean of its divisors is an integer number (26916400).

Almost surely, 2^106896421 is an apocalyptic number.

It is an amenable number.

106896421 is a deficient number, since it is larger than the sum of its proper divisors (769179).

106896421 is an equidigital number, since it uses as much as digits as its factorization.

106896421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769178.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 106896421 is about 10339.0725406102. The cubic root of 106896421 is about 474.5927012685.

The spelling of 106896421 in words is "one hundred six million, eight hundred ninety-six thousand, four hundred twenty-one".