1677640534 has 8 divisors (see below), whose sum is σ = 2529500040. Its totient is φ = 834473856.

The previous prime is 1677640507. The next prime is 1677640541. The reversal of 1677640534 is 4350467761.

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

It is a super-2 number, since 2×1677640534² = 5628955522639610312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2172724 + ... + 2173495.

It is an arithmetic number, because the mean of its divisors is an integer number (316187505).

Almost surely, 2^1677640534 is an apocalyptic number.

1677640534 is a deficient number, since it is larger than the sum of its proper divisors (851859506).

1677640534 is a wasteful number, since it uses less digits than its factorization.

1677640534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346414.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 1677640534 is about 40959.0104128506. The cubic root of 1677640534 is about 1188.2276027584.

The spelling of 1677640534 in words is "one billion, six hundred seventy-seven million, six hundred forty thousand, five hundred thirty-four".