672155479 has 2 divisors, whose sum is σ = 672155480. Its totient is φ = 672155478.

The previous prime is 672155459. The next prime is 672155513. The reversal of 672155479 is 974551276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 672155479 - 2⁵ = 672155447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672155459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336077739 + 336077740.

It is an arithmetic number, because the mean of its divisors is an integer number (336077740).

Almost surely, 2^672155479 is an apocalyptic number.

672155479 is a deficient number, since it is larger than the sum of its proper divisors (1).

672155479 is an equidigital number, since it uses as much as digits as its factorization.

672155479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The square root of 672155479 is about 25925.9614865100. The cubic root of 672155479 is about 875.9713746788.

The spelling of 672155479 in words is "six hundred seventy-two million, one hundred fifty-five thousand, four hundred seventy-nine".