742587989 has 16 divisors (see below), whose sum is σ = 873547584. Its totient is φ = 622339200.

The previous prime is 742587977. The next prime is 742587991. The reversal of 742587989 is 989785247.

It is a cyclic number.

It is not a de Polignac number, because 742587989 - 2⁴ = 742587973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742587389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123329 + ... + 129209.

It is an arithmetic number, because the mean of its divisors is an integer number (54596724).

Almost surely, 2^742587989 is an apocalyptic number.

It is an amenable number.

742587989 is a deficient number, since it is larger than the sum of its proper divisors (130959595).

742587989 is a wasteful number, since it uses less digits than its factorization.

742587989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6788.

The product of its digits is 10160640, while the sum is 59.

The square root of 742587989 is about 27250.4676840600. The cubic root of 742587989 is about 905.5573783284.

The spelling of 742587989 in words is "seven hundred forty-two million, five hundred eighty-seven thousand, nine hundred eighty-nine".