672748537 has 2 divisors, whose sum is σ = 672748538. Its totient is φ = 672748536.

The previous prime is 672748529. The next prime is 672748547. The reversal of 672748537 is 735847276.

It is a happy number.

672748537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 672416761 + 331776 = 25931^2 + 576^2 .

It is a cyclic number.

It is not a de Polignac number, because 672748537 - 2³ = 672748529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (672748507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336374268 + 336374269.

It is an arithmetic number, because the mean of its divisors is an integer number (336374269).

Almost surely, 2^672748537 is an apocalyptic number.

It is an amenable number.

672748537 is a deficient number, since it is larger than the sum of its proper divisors (1).

672748537 is an equidigital number, since it uses as much as digits as its factorization.

672748537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 49.

The square root of 672748537 is about 25937.3964961790. The cubic root of 672748537 is about 876.2289287385.

The spelling of 672748537 in words is "six hundred seventy-two million, seven hundred forty-eight thousand, five hundred thirty-seven".