740673553 has 2 divisors, whose sum is σ = 740673554. Its totient is φ = 740673552.

The previous prime is 740673547. The next prime is 740673617. The reversal of 740673553 is 355376047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485409024 + 255264529 = 22032^2 + 15977^2 .

It is a cyclic number.

It is not a de Polignac number, because 740673553 - 2²¹ = 738576401 is a prime.

It is a super-2 number, since 2×740673553² = 1097194624227287618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (740673503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370336776 + 370336777.

It is an arithmetic number, because the mean of its divisors is an integer number (370336777).

Almost surely, 2^740673553 is an apocalyptic number.

It is an amenable number.

740673553 is a deficient number, since it is larger than the sum of its proper divisors (1).

740673553 is an equidigital number, since it uses as much as digits as its factorization.

740673553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 40.

The square root of 740673553 is about 27215.3183519870. The cubic root of 740673553 is about 904.7785150331.

The spelling of 740673553 in words is "seven hundred forty million, six hundred seventy-three thousand, five hundred fifty-three".