77896152 has 24 divisors (see below), whose sum is σ = 210968940. Its totient is φ = 25965360.

The previous prime is 77896139. The next prime is 77896153. The reversal of 77896152 is 25169877.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 77896098 and 77896107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77896153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 540874 + ... + 541017.

Almost surely, 2^77896152 is an apocalyptic number.

77896152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

77896152 is an abundant number, since it is smaller than the sum of its proper divisors (133072788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77896152 is a wasteful number, since it uses less digits than its factorization.

77896152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081903 (or 1081896 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 77896152 is about 8825.8796728711. The cubic root of 77896152 is about 427.0761655546.

The spelling of 77896152 in words is "seventy-seven million, eight hundred ninety-six thousand, one hundred fifty-two".