677016457 has 4 divisors (see below), whose sum is σ = 729094660. Its totient is φ = 624938256.

The previous prime is 677016443. The next prime is 677016479. The reversal of 677016457 is 754610776.

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

It can be written as a sum of positive squares in 2 ways, for example, as 171845881 + 505170576 = 13109^2 + 22476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677016457 is a prime.

It is a super-3 number, since 3×677016457³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677016427) 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, 26039082 + ... + 26039107.

It is an arithmetic number, because the mean of its divisors is an integer number (182273665).

Almost surely, 2^677016457 is an apocalyptic number.

It is an amenable number.

677016457 is a deficient number, since it is larger than the sum of its proper divisors (52078203).

677016457 is a wasteful number, since it uses less digits than its factorization.

677016457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52078202.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 677016457 is about 26019.5399075387. The cubic root of 677016457 is about 878.0779576831.

The spelling of 677016457 in words is "six hundred seventy-seven million, sixteen thousand, four hundred fifty-seven".