70331413 has 8 divisors (see below), whose sum is σ = 72474968. Its totient is φ = 68200704.

The previous prime is 70331389. The next prime is 70331423. The reversal of 70331413 is 31413307.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16499844 + 53831569 = 4062^2 + 7337^2 .

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 70331413 - 2¹⁷ = 70200341 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 (70331423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8545 + ... + 14617.

It is an arithmetic number, because the mean of its divisors is an integer number (9059371).

Almost surely, 2^70331413 is an apocalyptic number.

It is an amenable number.

70331413 is a deficient number, since it is larger than the sum of its proper divisors (2143555).

70331413 is a wasteful number, since it uses less digits than its factorization.

70331413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 70331413 is about 8386.3825932281. The cubic root of 70331413 is about 412.7779098165. Note that the first 3 decimals are identical.

The spelling of 70331413 in words is "seventy million, three hundred thirty-one thousand, four hundred thirteen".