72080407 has 8 divisors (see below), whose sum is σ = 83538432. Its totient is φ = 60912600.

The previous prime is 72080401. The next prime is 72080429. The reversal of 72080407 is 70408027.

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

It is not a de Polignac number, because 72080407 - 2⁷ = 72080279 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 (72080401) 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, 72019 + ... + 73012.

It is an arithmetic number, because the mean of its divisors is an integer number (10442304).

Almost surely, 2^72080407 is an apocalyptic number.

72080407 is a deficient number, since it is larger than the sum of its proper divisors (11458025).

72080407 is a wasteful number, since it uses less digits than its factorization.

72080407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145109.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 72080407 is about 8490.0180800750. The cubic root of 72080407 is about 416.1715711638.

The spelling of 72080407 in words is "seventy-two million, eighty thousand, four hundred seven".