72671263 has 6 divisors (see below), whose sum is σ = 84536016. Its totient is φ = 62289612.

The previous prime is 72671251. The next prime is 72671267. The reversal of 72671263 is 36217627.

It is a happy number.

It is not a de Polignac number, because 72671263 - 2¹⁷ = 72540191 is a prime.

It is a super-2 number, since 2×72671263² = 10562224932030338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72671267) 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, 741495 + ... + 741592.

It is an arithmetic number, because the mean of its divisors is an integer number (14089336).

Almost surely, 2^72671263 is an apocalyptic number.

72671263 is a deficient number, since it is larger than the sum of its proper divisors (11864753).

72671263 is a wasteful number, since it uses less digits than its factorization.

72671263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483101 (or 1483094 counting only the distinct ones).

The product of its digits is 21168, while the sum is 34.

The square root of 72671263 is about 8524.7441603839. The cubic root of 72671263 is about 417.3056224023.

The spelling of 72671263 in words is "seventy-two million, six hundred seventy-one thousand, two hundred sixty-three".