70392261 has 4 divisors (see below), whose sum is σ = 93856352. Its totient is φ = 46928172.

The previous prime is 70392233. The next prime is 70392271. The reversal of 70392261 is 16229307.

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 not a de Polignac number, because 70392261 - 2⁹ = 70391749 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 (70392271) 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, 11732041 + ... + 11732046.

It is an arithmetic number, because the mean of its divisors is an integer number (23464088).

Almost surely, 2^70392261 is an apocalyptic number.

It is an amenable number.

70392261 is a deficient number, since it is larger than the sum of its proper divisors (23464091).

70392261 is a wasteful number, since it uses less digits than its factorization.

70392261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23464090.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 70392261 is about 8390.0095947502. The cubic root of 70392261 is about 412.8969152951.

The spelling of 70392261 in words is "seventy million, three hundred ninety-two thousand, two hundred sixty-one".