77960546 has 4 divisors (see below), whose sum is σ = 116940822. Its totient is φ = 38980272.

The previous prime is 77960539. The next prime is 77960563. The reversal of 77960546 is 64506977.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64506977 = 829 ⋅77813.

It can be written as a sum of positive squares in only one way, i.e., 77246521 + 714025 = 8789^2 + 845^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77960497 and 77960506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19490135 + ... + 19490138.

Almost surely, 2^77960546 is an apocalyptic number.

77960546 is a deficient number, since it is larger than the sum of its proper divisors (38980276).

77960546 is a wasteful number, since it uses less digits than its factorization.

77960546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38980275.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 77960546 is about 8829.5269408955. The cubic root of 77960546 is about 427.1938160731.

The spelling of 77960546 in words is "seventy-seven million, nine hundred sixty thousand, five hundred forty-six".