72076403 has 6 divisors (see below), whose sum is σ = 83844036. Its totient is φ = 61779732.

The previous prime is 72076399. The next prime is 72076409. The reversal of 72076403 is 30467027.

It is not a de Polignac number, because 72076403 - 2² = 72076399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72076409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 735425 + ... + 735522.

It is an arithmetic number, because the mean of its divisors is an integer number (13974006).

Almost surely, 2^72076403 is an apocalyptic number.

72076403 is a deficient number, since it is larger than the sum of its proper divisors (11767633).

72076403 is a wasteful number, since it uses less digits than its factorization.

72076403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470961 (or 1470954 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 72076403 is about 8489.7822704708. The cubic root of 72076403 is about 416.1638650391.

The spelling of 72076403 in words is "seventy-two million, seventy-six thousand, four hundred three".