70411561 has 8 divisors (see below), whose sum is σ = 77374944. Its totient is φ = 63541920.

The previous prime is 70411553. The next prime is 70411567. The reversal of 70411561 is 16511407.

It is a happy number.

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 70411561 - 2³ = 70411553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70411567) 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 7 ways as a sum of consecutive naturals, for example, 21855 + ... + 24868.

It is an arithmetic number, because the mean of its divisors is an integer number (9671868).

Almost surely, 2^70411561 is an apocalyptic number.

It is an amenable number.

70411561 is a deficient number, since it is larger than the sum of its proper divisors (6963383).

70411561 is a wasteful number, since it uses less digits than its factorization.

70411561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46871.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 70411561 is about 8391.1596933916. The cubic root of 70411561 is about 412.9346475788.

Adding to 70411561 its reverse (16511407), we get a palindrome (86922968).

The spelling of 70411561 in words is "seventy million, four hundred eleven thousand, five hundred sixty-one".