105420893 has 4 divisors (see below), whose sum is σ = 111622140. Its totient is φ = 99219648.

The previous prime is 105420877. The next prime is 105420923. The reversal of 105420893 is 398024501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81234169 + 24186724 = 9013^2 + 4918^2 .

It is a cyclic number.

It is not a de Polignac number, because 105420893 - 2⁴ = 105420877 is a prime.

It is a super-2 number, since 2×105420893² = 22227129361834898, 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 (105420823) 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, 3100598 + ... + 3100631.

It is an arithmetic number, because the mean of its divisors is an integer number (27905535).

Almost surely, 2^105420893 is an apocalyptic number.

It is an amenable number.

105420893 is a deficient number, since it is larger than the sum of its proper divisors (6201247).

105420893 is an equidigital number, since it uses as much as digits as its factorization.

105420893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6201246.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 105420893 is about 10267.4677014345. The cubic root of 105420893 is about 472.3989209238.

The spelling of 105420893 in words is "one hundred five million, four hundred twenty thousand, eight hundred ninety-three".