70630541 has 4 divisors (see below), whose sum is σ = 70648512. Its totient is φ = 70612572.

The previous prime is 70630531. The next prime is 70630579. The reversal of 70630541 is 14503607.

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.

It is a cyclic number.

It is not a de Polignac number, because 70630541 - 2²⁶ = 3521677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70630541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70630501) 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, 275 + ... + 11888.

It is an arithmetic number, because the mean of its divisors is an integer number (17662128).

Almost surely, 2^70630541 is an apocalyptic number.

It is an amenable number.

70630541 is a deficient number, since it is larger than the sum of its proper divisors (17971).

70630541 is a wasteful number, since it uses less digits than its factorization.

70630541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17970.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 70630541 is about 8404.1978201373. The cubic root of 70630541 is about 413.3622802452.

The spelling of 70630541 in words is "seventy million, six hundred thirty thousand, five hundred forty-one".