70872499 has 4 divisors (see below), whose sum is σ = 73953936. Its totient is φ = 67791064.

The previous prime is 70872497. The next prime is 70872509. The reversal of 70872499 is 99427807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99427807 = 1801 ⋅55207.

It is a cyclic number.

It is not a de Polignac number, because 70872499 - 2¹ = 70872497 is a prime.

It is a super-2 number, since 2×70872499² = 10045822229010002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70872497) 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, 1540684 + ... + 1540729.

It is an arithmetic number, because the mean of its divisors is an integer number (18488484).

Almost surely, 2^70872499 is an apocalyptic number.

70872499 is a deficient number, since it is larger than the sum of its proper divisors (3081437).

70872499 is a wasteful number, since it uses less digits than its factorization.

70872499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081436.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 70872499 is about 8418.5805810718. The cubic root of 70872499 is about 413.8337586261.

The spelling of 70872499 in words is "seventy million, eight hundred seventy-two thousand, four hundred ninety-nine".