1672772761 has 8 divisors (see below), whose sum is σ = 1832884704. Its totient is φ = 1514001120.

The previous prime is 1672772687. The next prime is 1672772767.

1672772761 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 1672772761 - 2⁹ = 1672772249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672772767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332460 + ... + 337453.

It is an arithmetic number, because the mean of its divisors is an integer number (229110588).

Almost surely, 2^1672772761 is an apocalyptic number.

1672772761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1672772761 is a deficient number, since it is larger than the sum of its proper divisors (160111943).

1672772761 is a wasteful number, since it uses less digits than its factorization.

1672772761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670151.

The product of its digits is 345744, while the sum is 46.

The square root of 1672772761 is about 40899.5447529676. The cubic root of 1672772761 is about 1187.0772519357.

The spelling of 1672772761 in words is "one billion, six hundred seventy-two million, seven hundred seventy-two thousand, seven hundred sixty-one".