72077071 has 8 divisors (see below), whose sum is σ = 78768000. Its totient is φ = 65409240.

The previous prime is 72077069. The next prime is 72077081. The reversal of 72077071 is 17077027.

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 72077071 - 2¹ = 72077069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72077011) 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, 1120 + ... + 12058.

It is an arithmetic number, because the mean of its divisors is an integer number (9846000).

Almost surely, 2^72077071 is an apocalyptic number.

72077071 is a deficient number, since it is larger than the sum of its proper divisors (6690929).

72077071 is a wasteful number, since it uses less digits than its factorization.

72077071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11549.

The product of its (nonzero) digits is 4802, while the sum is 31.

The square root of 72077071 is about 8489.8216117890. The cubic root of 72077071 is about 416.1651506961.

The spelling of 72077071 in words is "seventy-two million, seventy-seven thousand, seventy-one".