111677389 has 2 divisors, whose sum is σ = 111677390. Its totient is φ = 111677388.

The previous prime is 111677381. The next prime is 111677429. The reversal of 111677389 is 983776111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96138025 + 15539364 = 9805^2 + 3942^2 .

It is a cyclic number.

It is not a de Polignac number, because 111677389 - 2³ = 111677381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111677381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55838694 + 55838695.

It is an arithmetic number, because the mean of its divisors is an integer number (55838695).

Almost surely, 2^111677389 is an apocalyptic number.

It is an amenable number.

111677389 is a deficient number, since it is larger than the sum of its proper divisors (1).

111677389 is an equidigital number, since it uses as much as digits as its factorization.

111677389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 43.

The square root of 111677389 is about 10567.7523154169. The cubic root of 111677389 is about 481.5651872649.

The spelling of 111677389 in words is "one hundred eleven million, six hundred seventy-seven thousand, three hundred eighty-nine".