89403869 has 2 divisors, whose sum is σ = 89403870. Its totient is φ = 89403868.

The previous prime is 89403863. The next prime is 89403883. The reversal of 89403869 is 96830498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86025625 + 3378244 = 9275^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 89403869 - 2¹² = 89399773 is a prime.

It is a super-2 number, since 2×89403869² = 15986103584338322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89403863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44701934 + 44701935.

It is an arithmetic number, because the mean of its divisors is an integer number (44701935).

Almost surely, 2^89403869 is an apocalyptic number.

It is an amenable number.

89403869 is a deficient number, since it is larger than the sum of its proper divisors (1).

89403869 is an equidigital number, since it uses as much as digits as its factorization.

89403869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 89403869 is about 9455.3619179807. The cubic root of 89403869 is about 447.1488359561.

The spelling of 89403869 in words is "eighty-nine million, four hundred three thousand, eight hundred sixty-nine".