672647154 has 16 divisors (see below), whose sum is σ = 1357868448. Its totient is φ = 222120032.

The previous prime is 672647153. The next prime is 672647191. The reversal of 672647154 is 451746276.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (672647153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523227 + ... + 524510.

It is an arithmetic number, because the mean of its divisors is an integer number (84866778).

Almost surely, 2^672647154 is an apocalyptic number.

672647154 is an abundant number, since it is smaller than the sum of its proper divisors (685221294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672647154 is a wasteful number, since it uses less digits than its factorization.

672647154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047849.

The product of its digits is 282240, while the sum is 42.

The square root of 672647154 is about 25935.4420436591. The cubic root of 672647154 is about 876.1849107162.

The spelling of 672647154 in words is "six hundred seventy-two million, six hundred forty-seven thousand, one hundred fifty-four".