70406671 has 4 divisors (see below), whose sum is σ = 72309592. Its totient is φ = 68503752.

The previous prime is 70406669. The next prime is 70406683. The reversal of 70406671 is 17660407.

70406671 = 449² + 450² + ... + 670².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17660407 = 367 ⋅48121.

It is a cyclic number.

It is not a de Polignac number, because 70406671 - 2¹ = 70406669 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 (70406621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951405 + ... + 951478.

It is an arithmetic number, because the mean of its divisors is an integer number (18077398).

Almost surely, 2^70406671 is an apocalyptic number.

70406671 is a deficient number, since it is larger than the sum of its proper divisors (1902921).

70406671 is a wasteful number, since it uses less digits than its factorization.

70406671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902920.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 70406671 is about 8390.8683102525. The cubic root of 70406671 is about 412.9250880824.

The spelling of 70406671 in words is "seventy million, four hundred six thousand, six hundred seventy-one".