77232136 has 8 divisors (see below), whose sum is σ = 144810270. Its totient is φ = 38616064.

The previous prime is 77232107. The next prime is 77232179. The reversal of 77232136 is 63123277.

It can be written as a sum of positive squares in only one way, i.e., 60372900 + 16859236 = 7770^2 + 4106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×77232136² = 11929605662244992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77232098 and 77232107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4827001 + ... + 4827016.

Almost surely, 2^77232136 is an apocalyptic number.

It is an amenable number.

77232136 is a deficient number, since it is larger than the sum of its proper divisors (67578134).

77232136 is a wasteful number, since it uses less digits than its factorization.

77232136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9654023 (or 9654019 counting only the distinct ones).

The product of its digits is 10584, while the sum is 31.

The square root of 77232136 is about 8788.1816094116. The cubic root of 77232136 is about 425.8591818576.

The spelling of 77232136 in words is "seventy-seven million, two hundred thirty-two thousand, one hundred thirty-six".