70290423 has 72 divisors (see below), whose sum is σ = 127231104. Its totient is φ = 37966320.

The previous prime is 70290401. The next prime is 70290431. The reversal of 70290423 is 32409207.

It is not a de Polignac number, because 70290423 - 2¹⁰ = 70289399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70290463) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1634640 + ... + 1634682.

Almost surely, 2^70290423 is an apocalyptic number.

70290423 is a deficient number, since it is larger than the sum of its proper divisors (56940681).

70290423 is an equidigital number, since it uses as much as digits as its factorization.

70290423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70290423 is about 8383.9383943347. The cubic root of 70290423 is about 412.6977035763.

It can be divided in two parts, 702 and 90423, that added together give a cube (91125 = 45³).

The spelling of 70290423 in words is "seventy million, two hundred ninety thousand, four hundred twenty-three".