1672520827 has 2 divisors, whose sum is σ = 1672520828. Its totient is φ = 1672520826.

The previous prime is 1672520789. The next prime is 1672520867. The reversal of 1672520827 is 7280252761.

It is a happy number.

It is an a-pointer prime, because the next prime (1672520867) can be obtained adding 1672520827 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1672520827 - 2⁷ = 1672520699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1672520827.

It is not a weakly prime, because it can be changed into another prime (1672520867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836260413 + 836260414.

It is an arithmetic number, because the mean of its divisors is an integer number (836260414).

Almost surely, 2^1672520827 is an apocalyptic number.

1672520827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672520827 is an equidigital number, since it uses as much as digits as its factorization.

1672520827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1672520827 is about 40896.4647249613. The cubic root of 1672520827 is about 1187.0176542541.

The spelling of 1672520827 in words is "one billion, six hundred seventy-two million, five hundred twenty thousand, eight hundred twenty-seven".