676400989 has 8 divisors (see below), whose sum is σ = 739540800. Its totient is φ = 613536000.

The previous prime is 676400929. The next prime is 676401029. The reversal of 676400989 is 989004676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 676400989 - 2²¹ = 674303837 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 (676400909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63537 + ... + 73414.

It is an arithmetic number, because the mean of its divisors is an integer number (92442600).

Almost surely, 2^676400989 is an apocalyptic number.

It is an amenable number.

676400989 is a deficient number, since it is larger than the sum of its proper divisors (63139811).

676400989 is a wasteful number, since it uses less digits than its factorization.

676400989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137411.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 676400989 is about 26007.7101837128. The cubic root of 676400989 is about 877.8117934328.

The spelling of 676400989 in words is "six hundred seventy-six million, four hundred thousand, nine hundred eighty-nine".