672247087 has 4 divisors (see below), whose sum is σ = 675036736. Its totient is φ = 669457440.

The previous prime is 672247073. The next prime is 672247091. The reversal of 672247087 is 780742276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 672247087 - 2⁷ = 672246959 is a prime.

It is a super-2 number, since 2×672247087² = 903832291959971138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672247007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394463 + ... + 1394944.

It is an arithmetic number, because the mean of its divisors is an integer number (168759184).

Almost surely, 2^672247087 is an apocalyptic number.

672247087 is a deficient number, since it is larger than the sum of its proper divisors (2789649).

672247087 is a wasteful number, since it uses less digits than its factorization.

672247087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789648.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 672247087 is about 25927.7281496085. The cubic root of 672247087 is about 876.0111682201.

The spelling of 672247087 in words is "six hundred seventy-two million, two hundred forty-seven thousand, eighty-seven".