72077716 has 12 divisors (see below), whose sum is σ = 132774880. Its totient is φ = 34142040.

The previous prime is 72077689. The next prime is 72077717. The reversal of 72077716 is 61777027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72077717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474120 + ... + 474271.

Almost surely, 2^72077716 is an apocalyptic number.

72077716 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

72077716 is a deficient number, since it is larger than the sum of its proper divisors (60697164).

72077716 is a wasteful number, since it uses less digits than its factorization.

72077716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948414 (or 948412 counting only the distinct ones).

The product of its (nonzero) digits is 28812, while the sum is 37.

The square root of 72077716 is about 8489.8595983679. The cubic root of 72077716 is about 416.1663920790.

The spelling of 72077716 in words is "seventy-two million, seventy-seven thousand, seven hundred sixteen".