77069942 has 24 divisors (see below), whose sum is σ = 125462304. Its totient is φ = 35484032.

The previous prime is 77069933. The next prime is 77069953. The reversal of 77069942 is 24996077.

It is a super-3 number, since 3×77069942³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77069893 and 77069902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25748 + ... + 28584.

It is an arithmetic number, because the mean of its divisors is an integer number (5227596).

Almost surely, 2^77069942 is an apocalyptic number.

77069942 is a deficient number, since it is larger than the sum of its proper divisors (48392362).

77069942 is a wasteful number, since it uses less digits than its factorization.

77069942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920 (or 2903 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 77069942 is about 8778.9487981193. The cubic root of 77069942 is about 425.5608595252.

The spelling of 77069942 in words is "seventy-seven million, sixty-nine thousand, nine hundred forty-two".