70731311 has 8 divisors (see below), whose sum is σ = 81260544. Its totient is φ = 60308280.

The previous prime is 70731301. The next prime is 70731329. The reversal of 70731311 is 11313707.

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

It is a cyclic number.

It is not a de Polignac number, because 70731311 - 2¹⁰ = 70730287 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 (70731301) 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, 25115 + ... + 27788.

It is an arithmetic number, because the mean of its divisors is an integer number (10157568).

Almost surely, 2^70731311 is an apocalyptic number.

70731311 is a deficient number, since it is larger than the sum of its proper divisors (10529233).

70731311 is a wasteful number, since it uses less digits than its factorization.

70731311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53101.

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 70731311 is about 8410.1909015194. The cubic root of 70731311 is about 413.5587708960.

The spelling of 70731311 in words is "seventy million, seven hundred thirty-one thousand, three hundred eleven".