103958661 has 4 divisors (see below), whose sum is σ = 138611552. Its totient is φ = 69305772.

The previous prime is 103958653. The next prime is 103958663. The reversal of 103958661 is 166859301.

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.

It is not a de Polignac number, because 103958661 - 2³ = 103958653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103958663) 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, 17326441 + ... + 17326446.

It is an arithmetic number, because the mean of its divisors is an integer number (34652888).

Almost surely, 2^103958661 is an apocalyptic number.

It is an amenable number.

103958661 is a deficient number, since it is larger than the sum of its proper divisors (34652891).

103958661 is an equidigital number, since it uses as much as digits as its factorization.

103958661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34652890.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 103958661 is about 10196.0120145084. The cubic root of 103958661 is about 470.2046204246.

The spelling of 103958661 in words is "one hundred three million, nine hundred fifty-eight thousand, six hundred sixty-one".