77950061 has 8 divisors (see below), whose sum is σ = 91258944. Its totient is φ = 65184480.

The previous prime is 77950039. The next prime is 77950069. The reversal of 77950061 is 16005977.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77950061 - 2¹⁰ = 77949037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77950069) 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, 135515 + ... + 136088.

It is an arithmetic number, because the mean of its divisors is an integer number (11407368).

Almost surely, 2^77950061 is an apocalyptic number.

It is an amenable number.

77950061 is a deficient number, since it is larger than the sum of its proper divisors (13308883).

77950061 is a wasteful number, since it uses less digits than its factorization.

77950061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271651.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 77950061 is about 8828.9331745121. The cubic root of 77950061 is about 427.1746639583.

The spelling of 77950061 in words is "seventy-seven million, nine hundred fifty thousand, sixty-one".