289973674 has 4 divisors (see below), whose sum is σ = 434960514. Its totient is φ = 144986836.

The previous prime is 289973591. The next prime is 289973683. The reversal of 289973674 is 476379982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 145805625 + 144168049 = 12075^2 + 12007^2 .

It is a super-2 number, since 2×289973674² = 168169463226116552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72493417 + ... + 72493420.

Almost surely, 2^289973674 is an apocalyptic number.

289973674 is a deficient number, since it is larger than the sum of its proper divisors (144986840).

289973674 is a wasteful number, since it uses less digits than its factorization.

289973674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144986839.

The product of its digits is 4572288, while the sum is 55.

The square root of 289973674 is about 17028.6133904085. The cubic root of 289973674 is about 661.8905649341.

The spelling of 289973674 in words is "two hundred eighty-nine million, nine hundred seventy-three thousand, six hundred seventy-four".