1716640627 has 16 divisors (see below), whose sum is σ = 1956261888. Its totient is φ = 1494329760.

The previous prime is 1716640619. The next prime is 1716640657. The reversal of 1716640627 is 7260466171.

It is a cyclic number.

It is not a de Polignac number, because 1716640627 - 2³ = 1716640619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1716640627.

It is not an unprimeable number, because it can be changed into a prime (1716640657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19203 + ... + 61660.

It is an arithmetic number, because the mean of its divisors is an integer number (122266368).

Almost surely, 2^1716640627 is an apocalyptic number.

1716640627 is a deficient number, since it is larger than the sum of its proper divisors (239621261).

1716640627 is a wasteful number, since it uses less digits than its factorization.

1716640627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80970.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 1716640627 is about 41432.3620736255. The cubic root of 1716640627 is about 1197.3647325502.

The spelling of 1716640627 in words is "one billion, seven hundred sixteen million, six hundred forty thousand, six hundred twenty-seven".