457349989 has 4 divisors (see below), whose sum is σ = 457559424. Its totient is φ = 457140556.

The previous prime is 457349953. The next prime is 457350017. The reversal of 457349989 is 989943754.

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, and also an emirpimes, since its reverse is a distinct semiprime: 989943754 = 2 ⋅494971877.

It is a cyclic number.

It is not a de Polignac number, because 457349989 - 2¹¹ = 457347941 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 (457349909) 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, 101407 + ... + 105820.

It is an arithmetic number, because the mean of its divisors is an integer number (114389856).

Almost surely, 2^457349989 is an apocalyptic number.

It is an amenable number.

457349989 is a deficient number, since it is larger than the sum of its proper divisors (209435).

457349989 is a wasteful number, since it uses less digits than its factorization.

457349989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209434.

The product of its digits is 9797760, while the sum is 58.

The square root of 457349989 is about 21385.7426572004. The cubic root of 457349989 is about 770.4590443224.

The spelling of 457349989 in words is "four hundred fifty-seven million, three hundred forty-nine thousand, nine hundred eighty-nine".