70401517 has 4 divisors (see below), whose sum is σ = 74106880. Its totient is φ = 66696156.

The previous prime is 70401511. The next prime is 70401521. The reversal of 70401517 is 71510407.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71510407 = 311 ⋅229937.

It is not a de Polignac number, because 70401517 - 2³ = 70401509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70401491 and 70401500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70401511) 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, 1852653 + ... + 1852690.

It is an arithmetic number, because the mean of its divisors is an integer number (18526720).

Almost surely, 2^70401517 is an apocalyptic number.

It is an amenable number.

70401517 is a deficient number, since it is larger than the sum of its proper divisors (3705363).

70401517 is a wasteful number, since it uses less digits than its factorization.

70401517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705362.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 70401517 is about 8390.5611850460. The cubic root of 70401517 is about 412.9150120115.

The spelling of 70401517 in words is "seventy million, four hundred one thousand, five hundred seventeen".