72701487 has 12 divisors (see below), whose sum is σ = 107575104. Its totient is φ = 47285280.

The previous prime is 72701483. The next prime is 72701491. The reversal of 72701487 is 78410727.

It is an interprime number because it is at equal distance from previous prime (72701483) and next prime (72701491).

It is not a de Polignac number, because 72701487 - 2² = 72701483 is a prime.

It is a super-2 number, since 2×72701487² = 10571012424022338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72701483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98143 + ... + 98880.

It is an arithmetic number, because the mean of its divisors is an integer number (8964592).

Almost surely, 2^72701487 is an apocalyptic number.

72701487 is a deficient number, since it is larger than the sum of its proper divisors (34873617).

72701487 is a wasteful number, since it uses less digits than its factorization.

72701487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197070 (or 197067 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 72701487 is about 8526.5166979254. The cubic root of 72701487 is about 417.3634668949.

The spelling of 72701487 in words is "seventy-two million, seven hundred one thousand, four hundred eighty-seven".