672906077 has 4 divisors (see below), whose sum is σ = 674467776. Its totient is φ = 671344380.

The previous prime is 672906037. The next prime is 672906083. The reversal of 672906077 is 770609276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 672906077 - 2¹² = 672901981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672906037) 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 3 ways as a sum of consecutive naturals, for example, 780203 + ... + 781064.

It is an arithmetic number, because the mean of its divisors is an integer number (168616944).

Almost surely, 2^672906077 is an apocalyptic number.

It is an amenable number.

672906077 is a deficient number, since it is larger than the sum of its proper divisors (1561699).

672906077 is a wasteful number, since it uses less digits than its factorization.

672906077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561698.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 672906077 is about 25940.4332461892. The cubic root of 672906077 is about 876.2973199842.

The spelling of 672906077 in words is "six hundred seventy-two million, nine hundred six thousand, seventy-seven".