77473097 has 16 divisors (see below), whose sum is σ = 88719120. Its totient is φ = 67251456.

The previous prime is 77473087. The next prime is 77473103. The reversal of 77473097 is 79037477.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 13808656 + 63664441 = 3716^2 + 7979^2 .

It is not a de Polignac number, because 77473097 - 2¹² = 77469001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77473037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63263 + ... + 64475.

It is an arithmetic number, because the mean of its divisors is an integer number (5544945).

Almost surely, 2^77473097 is an apocalyptic number.

It is an amenable number.

77473097 is a deficient number, since it is larger than the sum of its proper divisors (11246023).

77473097 is a wasteful number, since it uses less digits than its factorization.

77473097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 259308, while the sum is 44.

The square root of 77473097 is about 8801.8803104791. The cubic root of 77473097 is about 426.3016096068.

The spelling of 77473097 in words is "seventy-seven million, four hundred seventy-three thousand, ninety-seven".