736416421 has 32 divisors (see below), whose sum is σ = 894983040. Its totient is φ = 598523904.

The previous prime is 736416407. The next prime is 736416427. The reversal of 736416421 is 124614637.

It is a cyclic number.

It is not a de Polignac number, because 736416421 - 2⁵ = 736416389 is a prime.

It is a super-3 number, since 3×736416421³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (736416427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347461 + ... + 349573.

It is an arithmetic number, because the mean of its divisors is an integer number (27968220).

Almost surely, 2^736416421 is an apocalyptic number.

It is an amenable number.

736416421 is a deficient number, since it is larger than the sum of its proper divisors (158566619).

736416421 is a wasteful number, since it uses less digits than its factorization.

736416421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245.

The product of its digits is 24192, while the sum is 34.

The square root of 736416421 is about 27136.9935880893. The cubic root of 736416421 is about 903.0417333640.

The spelling of 736416421 in words is "seven hundred thirty-six million, four hundred sixteen thousand, four hundred twenty-one".