1673349653 has 2 divisors, whose sum is σ = 1673349654. Its totient is φ = 1673349652.

The previous prime is 1673349641. The next prime is 1673349673. The reversal of 1673349653 is 3569433761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1382203684 + 291145969 = 37178^2 + 17063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1673349653 is a prime.

It is a super-2 number, since 2×1673349653² = 5600198122390440818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1673349598 and 1673349607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1673349673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836674826 + 836674827.

It is an arithmetic number, because the mean of its divisors is an integer number (836674827).

Almost surely, 2^1673349653 is an apocalyptic number.

It is an amenable number.

1673349653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673349653 is an equidigital number, since it uses as much as digits as its factorization.

1673349653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 47.

The square root of 1673349653 is about 40906.5966929541. The cubic root of 1673349653 is about 1187.2136993713.

The spelling of 1673349653 in words is "one billion, six hundred seventy-three million, three hundred forty-nine thousand, six hundred fifty-three".