77140276 has 24 divisors (see below), whose sum is σ = 139790336. Its totient is φ = 37208160.

The previous prime is 77140243. The next prime is 77140277. The reversal of 77140276 is 67204177.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77140277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48445 + ... + 50011.

Almost surely, 2^77140276 is an apocalyptic number.

It is an amenable number.

77140276 is a deficient number, since it is larger than the sum of its proper divisors (62650060).

77140276 is a wasteful number, since it uses less digits than its factorization.

77140276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 77140276 is about 8782.9537172867. The cubic root of 77140276 is about 425.6902757248.

The spelling of 77140276 in words is "seventy-seven million, one hundred forty thousand, two hundred seventy-six".