771632073 has 12 divisors (see below), whose sum is σ = 1121024580. Its totient is φ = 511446816.

The previous prime is 771632027. The next prime is 771632131. The reversal of 771632073 is 370236177.

It can be written as a sum of positive squares in 2 ways, for example, as 575856009 + 195776064 = 23997^2 + 13992^2 .

It is not a de Polignac number, because 771632073 - 2¹⁷ = 771501001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (771632273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246238 + ... + 249351.

It is an arithmetic number, because the mean of its divisors is an integer number (93418715).

Almost surely, 2^771632073 is an apocalyptic number.

It is an amenable number.

771632073 is a deficient number, since it is larger than the sum of its proper divisors (349392507).

771632073 is a wasteful number, since it uses less digits than its factorization.

771632073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495768 (or 495765 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 36.

The square root of 771632073 is about 27778.2661985949. The cubic root of 771632073 is about 917.2127650837.

The spelling of 771632073 in words is "seven hundred seventy-one million, six hundred thirty-two thousand, seventy-three".