106932421 has 2 divisors, whose sum is σ = 106932422. Its totient is φ = 106932420.

The previous prime is 106932377. The next prime is 106932433. The reversal of 106932421 is 124239601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81540900 + 25391521 = 9030^2 + 5039^2 .

It is an emirp because it is prime and its reverse (124239601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106932421 is a prime.

It is a super-2 number, since 2×106932421² = 22869085321842482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106932421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106932491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53466210 + 53466211.

It is an arithmetic number, because the mean of its divisors is an integer number (53466211).

Almost surely, 2^106932421 is an apocalyptic number.

It is an amenable number.

106932421 is a deficient number, since it is larger than the sum of its proper divisors (1).

106932421 is an equidigital number, since it uses as much as digits as its factorization.

106932421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 106932421 is about 10340.8133625939. The cubic root of 106932421 is about 474.6459722121.

The spelling of 106932421 in words is "one hundred six million, nine hundred thirty-two thousand, four hundred twenty-one".